Description
Product Overview
The HKG101224 is a 1 Inch economizer grade washable aluminum foil mesh panel filter engineered for outside air handling, rooftop economizer filter sections and hoods, make-up air intake filter systems, and AHU washable aluminum foil mesh pre-filter positions in commercial and institutional HVAC applications. Constructed with a precision-formed 24 gauge galvanized steel frame air filter, 30 gauge galvanized steel face grids on both the air entry and exit sides, and a 3-ply corrugated aluminum foil mesh media pack assembled in a criss-cross pattern for increased surface area and dust-holding capacity, the HKG101224 provides economizer grade galvanized steel air filter particulate filtration at 46% at rated airflow efficiency at 350 fpm rated airflow. Rated for 200°F continuous operation, washable and reusable indefinitely with warm water rinsing, and UL Classified 900—the HKG101224 is the practical, cost-effective choice for permanent outside air pre-filtration in commercial HVAC systems.
The 1 Inch nominal depth produces an actual depth of 7/8″ per HKG Series manufacturing convention, with actual height 11.5” and width 23.5” (nominal minus 1/2” on height and width) to fit standard nominal filter positions without modification. The 3-ply corrugated aluminum foil mesh media delivers 40 grams per square foot dust holding capacity, making the HKG101224 well-suited for the elevated particulate loads characteristic of outside air intake filter applications—significantly higher than recirculating air streams encountered in typical indoor filtration positions. The galvanized steel frame air filter and face grid construction provides structural durability and corrosion resistance appropriate for rooftop and outdoor air handling environments where aluminum frames may be less suitable for the handling conditions and mechanical stresses of rooftop HVAC maintenance.
Unlike standard recirculating-air pleated or fiberglass filters designed primarily for fine particulate capture, the HKG Series economizer filter is engineered specifically for the high dirt-loading, outdoor particulate environments encountered in outside air intake filter applications. The corrugated, criss-cross aluminum foil mesh media geometry maximizes dust holding capacity per unit depth while maintaining low resistance to airflow at the 300–500 fpm operating range—delivering extended service intervals between cleaning cycles and sustained system airflow efficiency. The permanent washable galvanized steel air filter design eliminates recurring filter replacement costs while maintaining consistent filtration performance through repeated wash cycles throughout years of commercial HVAC service.
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Key Benefits of the HKG101224 Aluminum Foil Mesh Air Filter
- economizer grade galvanized steel air filter Particulate Filtration: 46% at rated airflow dust arrestance efficiency at 350 fpm rated airflow captures the dust, pollen, insects, and airborne debris characteristic of outside air intake filter streams—providing effective pre-filtration protection for downstream HVAC components including coils, fans, and ductwork in economizer and make-up air intake filter applications without the high pressure drop of MERV-rated filters
- High Dust Holding Capacity: 40 grams per square foot dust holding capacity per unit face area allows extended service intervals in high-loading outside air applications, reducing cleaning frequency and maintenance labor compared to lower-capacity filter types. The corrugated, criss-cross aluminum foil mesh geometry maximizes dust storage volume per inch of filter depth
- permanent washable galvanized steel air filter Design: Rinse with warm water to restore full filtration performance—no replacement media required. The HKG Series washable galvanized steel air filter design eliminates the recurring cost and logistics of disposable filter programs, making it the cost-effective long-term choice for outside air filtration positions with frequent maintenance access
- 200°F Maximum Operating Temperature: Rated for continuous operation at temperatures up to 200°F, making the HKG101224 suitable for rooftop HVAC equipment, make-up air intake filter systems, and outside air handling applications with elevated air temperatures that would damage or degrade lower-rated filter alternatives
- 24 Gauge galvanized steel frame air filter: Precision-mitered 24 gauge galvanized steel frame air filter with pop-rivet corners provides structural rigidity and corrosion resistance in outdoor and semi-outdoor HVAC environments. Drain holes in three frame corners provide condensate relief for installations subject to humid outside air and precipitation. More robust than aluminum for rooftop and outdoor applications with exposure to weather, mechanical handling, and periodic washing
- 30 Gauge Galvanized Steel Face Grids: Galvanized steel face grids on both air entry and exit sides protect the aluminum foil mesh media pack from physical damage during installation, removal, and washing while providing uniform airflow distribution across the filter face at rated 350 fpm velocity
- 3-Ply Corrugated Aluminum Foil Mesh Media: Multiple layers of corrugated aluminum foil mesh assembled in a criss-cross pattern create the extended surface area and tortuous path geometry required for efficient economizer grade galvanized steel air filter particle capture and high dust-holding capacity. The lightweight aluminum foil construction provides excellent corrosion resistance in moisture-laden outside air streams while maintaining the low pressure drop characteristic required for economizer and outside air handling applications
- No Orientation Requirement: Unlike mist eliminator filters that must be installed upright for liquid drainage, the HKG101224 economizer filter installs in vertical or horizontal orientation to suit any housing design and airflow direction—no critical TOP-label requirement
- Made in USA by AMFCO — UL Classified 900: Manufactured by American Metal Filter Company to exacting dimensional and construction standards. UL Classified 900 certification confirms the HKG101224 meets UL’s requirements for air filter unit materials and construction. All 1 Inch nominal sizes available from stock for immediate shipment
Technical Specifications
All performance specifications for the HKG101224 conform to the authoritative AMFCO HKG Series Tech Sheet. Dimensional specifications reflect HKG Series manufacturing conventions: 1/2” undercut on height and width (actual = nominal − 1/2”), and nominal depth producing 7/8″ actual depth.
| Specifications: | Details: |
|---|---|
| Model Number | HKG101224 (HKG Series — 1 Inch Aluminum Foil Mesh Economizer Filter) |
| Nominal Size | 12” x 24” x 1” |
| Actual Dimensions | 11.5” H × 23.5” W × 7/8″ D (±1/8” H&W, ±1/16” D) |
| Frame Material | 24 gauge galvanized steel |
| Frame Construction | Precision-mitered corners secured with pop rivets; drain holes in three frame corners for condensate relief |
| Face Grid Material | 30 gauge galvanized steel (both air entry and exit sides) |
| Media | Aluminum foil mesh — 3-ply: corrugated layers assembled in criss-cross pattern |
| Media Assembly | Single-stage corrugated aluminum foil mesh; pack placed between face grids |
| Filter Type | Economizer grade impingement-type washable galvanized steel framed aluminum foil mesh panel filter |
| Filter Grade | economizer grade galvanized steel air filter — no MERV designation |
| Dust Arrestance | 46% at rated airflow (ASHRAE 52.1 test method) |
| Dust Holding Capacity | 40 grams per square foot |
| Rated Airflow | 350 fpm face velocity |
| Recommended Airflow Range | 300–500 fpm |
| Maximum Operating Temperature | 200°F continuous |
| Cleaning Method | Rinse with warm water; air dry before reinstalling |
| Washability | Frequent and moderate |
| Installation Orientation | Vertical or horizontal; no specific orientation requirement |
| Nominal Depth | 1” |
| Actual Depth | 7/8″ (±1/16”) |
| Sizing Convention | Nominal minus 1/2” on height and width |
| Filter Weight | 1.75 lbs |
| Compliance & Certifications | UL Classified 900 |
| UPC Code | 840373524501 |
| GTIN Code | 00840373524501 |
| Country of Origin | Made in USA |
Commercial & Institutional HVAC Applications
The HKG101224 1 Inch aluminum foil mesh economizer filter is engineered for outside air handling applications in commercial, institutional, and light industrial HVAC systems. Its combination of 46% at rated airflow dust arrestance, 40 grams per square foot dust holding capacity, permanent washability, and 200°F temperature rating makes it the practical choice for the high-loading, variable-condition environments encountered in outside air intake filter positions.
Rooftop economizer filter sections and hoods and Outside Air Intakes
Rooftop HVAC units and outside air intake filter systems expose filters to the full range of outdoor airborne contaminants: dust, pollen, insects, leaves, seeds, atmospheric particulate, and in some regions, industrial or agricultural fallout. The HKG101224’s 40 grams per square foot dust holding capacity provides extended service intervals in these high-loading applications, while the galvanized steel frame air filter construction withstands the outdoor environment and mechanical handling associated with rooftop maintenance access. The washable galvanized steel air filter design is particularly cost-effective at rooftop locations where filter changeout involves labor, staging, and waste disposal logistics that disposable filter programs require at each service interval.
make-up air intake filter and Ventilation Systems
make-up air intake filter units introducing 100% outside air into commercial buildings, manufacturing facilities, warehouses, and institutional spaces benefit from the HKG Series economizer filter’s high dust-holding capacity and washability. At 100% outside air, the filter loading rate is substantially higher than mixed recirculating/outside air systems, making the 40 grams per square foot per unit face area capacity and washable galvanized steel air filter design particularly valuable for reducing maintenance frequency and cost. The 200°F temperature rating accommodates make-up air intake filter systems with upstream heating coils or direct-fire heating equipment.
AHU washable aluminum foil mesh pre-filter Positions
air handling unit filter sections with dedicated outside air washable aluminum foil mesh pre-filter sections use economizer grade filters like the HKG101224 to capture coarse outdoor particulate before it reaches downstream MERV-rated filters, coils, and fans. The HKG Series washable aluminum foil mesh pre-filter extends the service life of downstream higher-efficiency filters by intercepting the bulk of the heavy outside air loading at low cost per unit, reducing total filtration system operating cost. The washable galvanized frame construction provides the durability required for AHU washable aluminum foil mesh pre-filter positions where filter housing access may be infrequent and handling conditions variable.
Commercial Building Outside Air Systems
Commercial office buildings, retail facilities, hotels, schools, hospitals, and other commercial building types with mechanical ventilation systems use economizer grade filters at outside air intakes to protect HVAC equipment from the outdoor particulate environment. The HKG101224’s nominal 12x24x1 size fits standard filter tracks and housings in commercial AHUs and rooftop units. The permanent washable galvanized steel air filter design eliminates the recurring cost and waste of disposable filter programs at outside air positions, which require replacement on the same schedule as return air positions despite handling much heavier particulate loads.
Construction Features
The HKG101224 HKG Series galvanized steel framed aluminum foil mesh economizer filter is built from materials selected specifically for outside air handling applications: galvanized steel frame air filter and face grids for outdoor environment durability, and aluminum foil mesh media for lightweight corrosion resistance in moisture-laden outside air streams.
24 Gauge galvanized steel frame air filter
The precision-formed 24 gauge galvanized steel perimeter frame provides structural rigidity and corrosion resistance appropriate for rooftop and outdoor air handling environments. Precision-mitered corners secured with pop rivets maintain critical face dimensions within ±1/8” tolerance throughout the filter’s operational lifetime and through repeated wash cycles. Drain holes in three frame corners provide condensate relief for installations subject to humid outside air or precipitation ingress, preventing moisture accumulation within the frame channel. The nominal 1” frame produces an actual depth of 7/8″ per HKG Series manufacturing convention.
30 Gauge Galvanized Steel Face Grids
30 gauge galvanized steel face grids on both the air entry and exit sides protect the aluminum foil mesh media pack from physical damage during installation, removal, and washing while ensuring uniform face velocity distribution across the filter area. Galvanized construction matches the frame material for consistent corrosion resistance in outdoor and semi-outdoor HVAC environments. The face grids maintain the 3-ply media pack in proper criss-cross alignment to preserve the designed particle capture geometry throughout the filter’s service life.
3-Ply Corrugated Aluminum Foil Mesh Media
The 3-ply corrugated aluminum foil mesh media pack is the filtration core of the HKG101224. Multiple layers of corrugated aluminum foil mesh assembled in a criss-cross pattern create the extended surface area geometry required for efficient economizer grade galvanized steel air filter particle capture and the 40 grams per square foot dust holding capacity. The corrugated, criss-cross assembly maximizes the active filtration surface within the 7/8″ actual depth while maintaining the low pressure drop and high face velocity capability required for outside air handling applications at 300–500 fpm. Aluminum foil construction provides lightweight corrosion resistance superior to galvanized or painted steel mesh for direct contact with moisture-laden outside air streams.
Maintenance & Cleaning
The HKG101224 HKG Series galvanized steel framed aluminum foil mesh economizer filter requires periodic washing to maintain optimal filtration performance and restore the 3-ply aluminum foil mesh media pack’s dust holding capacity. The washing process requires only access to warm running water, and the AMFCO tech sheet specifies “frequent and moderate” washability for the HKG Series.
Washing Procedure
Remove the HKG101224 from the filter housing. Rinse with a moderate stream of warm water from the clean side through to the dirty side until water runs completely clear. For filters in high-loading applications with accumulated grease or adhesive contaminants, a mild detergent solution may be used followed by a thorough fresh-water rinse. Do NOT use high-pressure washing equipment that could deform the corrugated aluminum foil mesh layers. Allow the filter to air dry or shake off excess water before reinstalling.
Washing Frequency Guidelines
outside air intake filter applications in urban or dusty environments typically require washing every 1–3 months. rooftop economizer filter positions in moderate-particulate environments typically require washing every 2–4 months. make-up air intake filter applications with high outside air volume may require more frequent washing during high-pollen or dust seasons. Visual inspection of the media pack for accumulated loading is the most reliable indicator for washing timing—when the media layers are visibly dark with accumulated dust or when system airflow noticeably decreases, washing is indicated.
Installation
The HKG101224 HKG Series galvanized steel framed aluminum foil mesh economizer filter installs in standard filter tracks, housings, and outside air intake filter frames in both vertical and horizontal orientations. Unlike mist eliminator filters that require a specific upright orientation for liquid drainage, the HKG101224 can be installed in any orientation that suits the housing design and system airflow direction—there is no critical orientation requirement for the HKG Series economizer filter.
Pre-Installation Checklist
- Confirm housing accepts 1” nominal filter (actual dimensions: 11.5” H × 23.5” W × 7/8″ D)
- Confirm operating temperature at filter location does not exceed 200°F
- Confirm face velocity at filter location is within 300–500 fpm recommended range
- Clean housing interior of accumulated dust and debris from previous filter
- Inspect filter housing seals and retention mechanisms for proper condition
Installation Steps
Shut down the HVAC system or isolate the outside air intake filter section. Remove any existing filter. Slide the HKG101224 into the filter housing oriented in the direction of airflow. Press firmly into place ensuring all four frame edges seat properly against housing walls and filter tracks. Secure with the housing retention mechanism (clips, straps, or retaining frame as applicable). Restore system operation. Record installation date for maintenance tracking. No specific label orientation is required—the HKG101224 performs as designed in any installed position.
Complementary Products
The HKG101224 HKG Series economizer filter is engineered as a pre-filter stage for outside air intake filter, rooftop economizer filter, and AHU washable aluminum foil mesh pre-filter applications. By capturing coarse outdoor particulate at the air entry point, the HKG extends the service life of downstream higher-efficiency filters and protects coils, fans, and ductwork from heavy outdoor loading. AMFCO offers complete washable downstream filter solutions in matching face sizes to pair with the HKG Series washable aluminum foil mesh pre-filter.
Downstream Higher-Efficiency Filters
Install these downstream of the HKG101224 in AHU filter sections, mixed-air handling unit filter sections, and commercial HVAC systems requiring both outside air pre-filtration and higher-efficiency recirculating-air particulate capture. The HKG washable aluminum foil mesh pre-filter intercepts the bulk of the coarse outdoor particulate load first, allowing the downstream filter to operate primarily on pre-cleaned air—significantly extending washing intervals and service life:
- EC Series — MERV 6 Washable Electrostatic (ECA): Passive electrostatic MERV 6 filter rated at 85% dust arrestance at 300 fpm for residential and commercial HVAC recirculating-air applications. The polypropylene media layer generates an electrostatic charge naturally as air passes through—no electricity required. .030” aluminum frame with mitered corners, 4-ply electrostatic media pack, 150°F max. The HKG Series economizer washable aluminum foil mesh pre-filter captures coarse outside air particulate before it can load the downstream EC Series filter, protecting the electrostatic media and extending service intervals. Available in matching 12”×24” face size:
- 12x24x1 MERV 6 Washable Electrostatic Filter (ECA101224) — 1-inch nominal, passive electrostatic, 300 fpm rated airflow, 150°F max
- 12x24x2 MERV 6 Washable Electrostatic Filter (ECA201224) — 2-inch nominal, higher dust-holding capacity (93 g/ft²) and longer washing intervals between cleanings
- HF Series — MERV 4 Two-Stage Washable Foam (HFA): Two-stage washable aluminum mesh and foam filter rated MERV 4 at 85.4% dust arrestance at 300 fpm. Stage 1 is a corrugated aluminum mesh that captures larger particulate; Stage 2 is 25 ppi open-cell polyurethane foam that captures finer particles. Low air resistance makes the HF Series suitable for electronics cooling, computer room HVAC, and airflow-sensitive outside air systems. .030” aluminum frame, 250°F max. Pairs effectively with the HKG washable aluminum foil mesh pre-filter in two-stage outside air filtration arrangements. Available in matching 12”×24” face size:
- 12x24x1 MERV 4 Two-Stage Foam Filter (HFA101224) — 1-inch nominal, aluminum mesh + 25 ppi foam, 300 fpm rated airflow, 250°F max
- 12x24x2 MERV 4 Two-Stage Foam Filter (HFA201224) — 2-inch nominal, same two-stage construction with greater dust-holding capacity (27 g/ft²) and extended service intervals
Same economizer grade galvanized steel air filter — Alternate Frame Material (HKA Series)
- HKA Series (Aluminum Frame): Aluminum framed aluminum foil mesh economizer filter in the same 1-inch and 2-inch nominal depths as the HKG Series—lighter weight and fully corrosion-proof for applications where aluminum construction is preferred over galvanized steel. Same economizer grade aluminum foil mesh media, same 350 fpm rated airflow, same 200°F maximum operating temperature, and same arrestance specifications as the HKG Series. Choose HKA for aluminum-preferred, corrosion-sensitive, or weight-sensitive outside air and economizer applications. Matching 12”×24” face size:
- 12x24x1 Aluminum Frame Economizer Filter (HKA101224) — same depth as this product, aluminum frame and face grids
- 12x24x2 Aluminum Frame Economizer Filter (HKA201224) — alternate depth option in aluminum frame construction
Dedicated Moisture Separation — HM Series Mist Eliminators
When liquid separation—water droplet capture, coolant mist elimination, or oil mist separation—is the primary application requirement rather than dry particulate pre-filtration, AMFCO HM Series mist eliminators are the correct product family. These are not economizer filters and are not substitutes for the HKG washable aluminum foil mesh pre-filter in dry outside air applications:
- HMA Series (Aluminum Mist Eliminator): .030” aluminum framed aluminum screen wire washable mist eliminator—99%+ water droplet capture efficiency at 500 fpm for chilled water coil protection, humidifier carry-over, and coolant mist applications where liquid separation is the primary requirement. 275°F max. Dedicated moisture separator, not an economizer washable aluminum foil mesh pre-filter.
- HMG Series (Galvanized Mist Eliminator): 24 gauge galvanized steel framed aluminum screen wire washable mist eliminator for moisture separation at 325°F—higher temperature rating than the HMA Series for applications requiring elevated temperature mist separation. Dedicated moisture separator, not an economizer washable aluminum foil mesh pre-filter.
Frequently Asked Questions
What makes the HKG101224 an “economizer grade” filter?
“Economizer grade” refers to the filter’s design purpose and efficiency level: the HKG101224 is designed for economizer hood, outside air intake filter, and make-up air intake filter applications where the primary requirement is coarse particulate capture at low pressure drop, not the high-efficiency particle capture of MERV-rated filters. The 46% at rated airflow dust arrestance at 350 fpm captures the bulk of the outdoor coarse particulate load (dust, pollen, insects, debris) that would otherwise accumulate on downstream coils and equipment, while maintaining the low resistance to airflow required for economizer and outside air systems operating at 300–500 fpm.
Does the HKG101224 have a MERV rating?
No—the HKG101224 HKG Series economizer filter does not carry a MERV rating. MERV (Minimum Efficiency Reporting Value per ASHRAE 52.2) testing is designed for recirculating air filtration applications. The HKG Series is rated by dust arrestance per ASHRAE 52.1 at 46% at rated airflow at 350 fpm, which is the appropriate test method for economizer grade washable panel filters used in outside air intake filter applications.
What are the actual dimensions of the HKG101224?
Actual dimensions: 11.5” H × 23.5” W × 7/8″ D (±1/8” on H&W, ±1/16” on depth). Nominal size is 12x24x1. The HKG Series uses a 1/2” undercut on height and width (actual = nominal − 1/2”). Confirm your housing accepts this actual size before ordering.
How does the HKG Series sizing compare to the HMA/HMG/HMS Series?
The HKG Series uses a 1/2” undercut on height and width (actual = nominal − 1/2”). The HM Series (HMA/HMG/HMS) uses a 5/8” undercut. If you are replacing a different series filter, verify the actual dimensions match your housing requirements. HKG actual height for a 12” nominal = 11.5”; HM Series actual height for the same nominal would be 11.375”. Do not mix HKG and HM Series filters in the same housing without confirming dimensional compatibility.
Can the HKG101224 be installed in any orientation?
Yes—the HKG101224 HKG Series economizer filter can be installed in vertical or horizontal orientation without performance penalty. There is no “TOP must face up” requirement for the HKG Series (unlike HM Series mist eliminator filters, which require upright installation for moisture drainage). Install in the orientation that suits your housing design and airflow direction.
How do I clean the HKG101224?
Remove the filter from the housing and rinse with a moderate stream of warm water from the clean side through to the dirty side until water runs completely clear. For accumulated grease or adhesive deposits, a mild detergent solution may be used. Do NOT use high-pressure steam cleaning. Shake off excess water and air dry before reinstalling. The AMFCO tech sheet specifies “frequent and moderate” washability for the HKG Series—suitable for regular cleaning cycles in high-loading outside air applications.
What is the maximum operating temperature?
The HKG101224 HKG Series is rated for 200°F continuous operation. This covers the vast majority of outside air handling, economizer, make-up air intake filter, and AHU washable aluminum foil mesh pre-filter applications including those with upstream heating coils. For higher temperature applications, AMFCO HM Series filters are rated for 275°F (HMA), 325°F (HMG), and 900°F (HMS) respectively.
How does the HKG Series differ from the HKA Series?
HKG (this product): 24 gauge galvanized steel frame and 30 gauge galvanized steel face grids—more robust for rooftop and outdoor handling environments. HKA: aluminum frame and face grids—lighter weight and fully corrosion-proof for applications preferring aluminum construction. Both series use the same aluminum foil mesh media, same nominal depths (1” and 2”), same arrestance specs, and same economizer grade galvanized steel air filter performance. Frame material is the primary difference.
What is the dust holding capacity of the HKG101224?
The HKG101224 1 Inch washable aluminum foil mesh air filter has a dust holding capacity of 40 grams per square foot. This applies to all HKG Series 1 Inch nominal standard sizes. The 1 Inch depth provides this capacity for applications requiring extended service intervals between cleaning cycles in high-loading outside air environments.
What is the rated airflow for the HKG101224?
The HKG101224 HKG Series is rated at 350 fpm face velocity, with a recommended operating range of 300–500 fpm. Note that this is lower than the 500 fpm rating of the HM Series mist eliminators—the HKG Series economizer filter is designed for outside air handling systems operating in the 300–500 fpm range typical of commercial rooftop units and AHU outside air sections.
How often should I wash the HKG101224?
The HKG Series is rated for “frequent and moderate” washing. Frequency depends on your application: outside air intakes in urban or dusty environments typically require washing every 1–3 months; rooftop economizer filter positions in moderate environments typically every 2–4 months; high-volume make-up air intake filter applications may require more frequent washing during high-particulate seasons. Visual inspection of the media face is the most reliable indicator for washing timing.
Why Choose the HKG101224 HKG Series Aluminum Foil Mesh Filter?
The HKG101224 HKG Series galvanized steel framed aluminum foil mesh economizer filter provides reliable outside air pre-filtration with the practical advantages of permanent washability, high dust-holding capacity, and galvanized steel durability in a cost-effective, stock-available standard size. With 46% at rated airflow dust arrestance at 350 fpm rated airflow and 40 grams per square foot dust holding capacity, the HKG101224 captures the coarse outdoor particulate load at outside air intakes, economizer filter sections and hoods, and make-up air intake filter systems while maintaining the low airflow resistance required for outside air handling at 300–500 fpm.
The 24 gauge galvanized steel frame air filter with pop-rivet mitered corners and 30 gauge galvanized steel face grids on both sides deliver structural robustness appropriate for rooftop and outdoor HVAC environments—where filters are handled during rooftop service visits, exposed to weather during installation and removal, and subject to the mechanical stress of outdoor maintenance conditions. The 3-ply corrugated aluminum foil mesh media pack in criss-cross assembly provides the dust-storage geometry required for the extended service intervals needed in commercial building maintenance programs with high outside air particulate loading.
The permanent washable galvanized steel air filter design makes the HKG101224 particularly cost-effective at outside air positions: while disposable filter programs require purchasing, delivering, installing, removing, and disposing of replacement filters on a fixed schedule, the HKG101224 requires only periodic warm-water washing to restore full performance indefinitely. Over a typical 10–15 year equipment life, the total cost of ownership of the permanent washable galvanized steel air filter design versus recurring disposable filter purchases at outside air positions represents substantial savings. Combined with the 200°F temperature rating, UL Classified 900 certification, no specific installation orientation requirement, and Made in USA manufacturing by American Metal Filter Company, the HKG101224 is the engineering-sound choice for commercial HVAC outside air pre-filtration in standard 12x24x1 nominal housings.
