Showing all 4 results
As low as $0.10 per sq inch
As low as $0.10 per sq inch
As low as $0.08 per sq inch
This page lists all 4 1 2 Inch Filters available from Metal Air Filters — precision-manufactured permanent washable aluminum mesh HVAC filters in the 1×2 nominal size. All filters on this page are HI Series and HIA Series products manufactured by American Metal Filter Company (AMFCO) with .030" extruded aluminum alloy frames, corrugated aluminum mesh media, UL 900 Class 1 certification, and a 275°F maximum operating temperature rating.
Each 1×2 filter is a permanent washable replacement — clean and reuse for 5–10 years rather than replacing disposable filters every 30–90 days. AMFCO’s aluminum mesh construction provides 43% average dust arrestance per ASHRAE 52.1, making these filters effective pre-filters in multi-stage HVAC systems protecting downstream MERV 8 through HEPA filtration stages across residential, commercial, and industrial applications.
Create a free online account during checkout to instantly receive 10% off your first order. Registered customers also enjoy exclusive benefits including 15% off all repeat orders, priority processing, order history tracking, and expedited reordering. Set up your account by clicking the “Create account?” checkbox during checkout. Commercial and institutional accounts may qualify for NET 30 payment terms with approved credit application.
All 4 1 2 inch filters available from Metal Air Filters, with nominal size, actual dimensions, and current pricing. Click any product for full specifications and purchasing.
| Product / Part No. | Nominal Size | Actual Dimensions | AMFCO SKU | Price |
|---|---|---|---|---|
| Custom Mesh Filter, Aluminum, 1/2 Inch Thick | HIAS050 | $— | ||
| Custom Electrostatic Air Filter, 1/2 Inch Thick | H and W per customer specification (actual = nominal − 1/2” on each dimension); depth 1/2” (0.5”) exact (±1/16”) | ECAS05 | $— | |
| Custom Foam Air Filter, 1/2 Inch (0.50″)Thick | 1/2″ (±1/16”) — height and width fabricated to customer spec (±1/8”) | HFAS050 | $— | |
| HFAS050200 14.750″x11.750″x0.438″ Washable Foam Ai | 11.75” H × 17.75” W × 7/16″ D (±1/8” H&W, ±1/16” depth) | HFAS050200-1-11.750×17.750×0.4375 | $— |
The following specifications apply to the HI Series products on this page. Individual products vary by nominal size, actual dimensions, and dust holding capacity — see each product page for complete product-specific specifications.
| Specifications: | Details: |
|---|---|
| Frame Material | .025″ thick aluminum alloy (lighter gauge than standard 1″ filters) |
| Filter Media | 4-ply corrugated criss-cross aluminum screen wire mesh |
| Frame Construction | Precision-mitered corners, aluminum pop rivets |
| Maximum Operating Temperature | 275°F continuous (UL 900 Class 1 certified) |
| Dust Arrestance Efficiency | 43% average at rated airflow (350 FPM) |
| Dust Holding Capacity | 68 grams per square foot |
| Rated Airflow | 350 FPM (feet per minute) |
| Recommended Airflow Range | 300-500 FPM face velocity |
| Initial Pressure Drop | 0.002″ w.g. @ 350 FPM (clean filter – ultra-low resistance) |
| Recommended Final Resistance | 0.50″ w.g. (water gauge) before cleaning |
| Washability | Repeated cleaning cycles with water-based methods, detergents, or pressure washers |
| Service Life | 5-10 years with proper maintenance protocols |
| Compliance & Certifications | UL 900 Class 1, ASTM E 2931 (washable filter standard) |
| Country of Origin | Made in USA |
1 2 Inch Filters from Metal Air Filters are deployed across a wide range of commercial, institutional, and industrial building types. The following applications represent the primary use cases for 1 2 inch filters.
The HIAS050 Custom 1/2″ Washable Aluminum Mesh Filter solves critical filtration challenges across diverse applications where standard off-the-shelf filter sizes cannot accommodate unique HVAC equipment requirements. From discontinued residential units to specialty commercial installations, this made-to-order solution ensures reliable pre-filtration regardless of your system’s dimensional specifications.
Property owners maintaining older HVAC systems face constant frustration when original equipment manufacturers discontinue filter production or when legacy units use non-standard dimensions that modern filters cannot match. The HIAS050 custom aluminum filter eliminates this challenge by manufacturing exact replacements for any discontinued filter size, ensuring your older but perfectly functional HVAC equipment continues delivering reliable performance for years to come. Apartment building owners with 20-30 year old rooftop units, facility managers supporting vintage commercial systems, and homeowners preserving historic property HVAC installations depend on custom washable filters to maintain equipment that would otherwise require expensive replacement simply due to filter unavailability. The permanent washable construction means once you’ve placed your initial custom order, you’ll never search for compatible filters again—simply reorder identical replacements through your online account whenever cleaning becomes impractical or when establishing backup inventory.
HVAC systems manufactured for European, Asian, or other international markets often utilize metric dimensions or regional sizing standards incompatible with North American filter inventory. Commercial facilities operating European-manufactured chillers, precision cooling systems, or specialty ventilation equipment struggle with filter procurement when standard American sizes create gaps, require adapter frames, or simply don’t fit at all. The HIAS050 custom solution bridges this gap by manufacturing filters to exact millimeter specifications, ensuring perfect fit regardless of your equipment’s country of origin. Data centers with European server room cooling systems, pharmaceutical facilities using German or Swiss manufacturing equipment, and commercial kitchens equipped with Italian ventilation systems rely on custom aluminum filters to maintain filtration performance without compromising system integrity through improvised filter solutions.
Some HVAC installations feature exceptionally shallow filter tracks where even standard 1-inch nominal filters (actual 7/8″ depth) create clearance issues with ductwork, access panels, or adjacent equipment. The HIAS050’s exact 1/2-inch depth profile solves these tight-space challenges while maintaining effective pre-filtration performance through its optimized 4-ply media construction. Compact rooftop units with limited service clearance, wall-mounted fan coil units in residential high-rises, and under-floor air distribution systems in raised-floor commercial spaces benefit from ultra-slim filtration that standard products cannot provide. HVAC contractors servicing these installations appreciate having a permanent washable solution that eliminates the ongoing challenge of sourcing compatible slim-profile filters for clients with space-constrained equipment.
Custom home construction, architectural renovations, and specialty light commercial installations often incorporate HVAC equipment with non-standard filter dimensions designed to match unique architectural requirements or space constraints. Wine cellar climate control systems, indoor pool dehumidification equipment, home theater ventilation, and custom residential installations frequently require filter sizes unavailable through standard distribution channels. The HIAS050 provides homeowners and contractors with a professional-grade permanent solution manufactured to exact specifications, eliminating the frustration of makeshift filter solutions or expensive custom fabrication from local sheet metal shops. Once installed, the washable aluminum construction ensures 5-10 years of reliable service with simple water-based cleaning, providing long-term filtration performance for specialty applications where filter availability has historically been problematic.
Customers searching for 1/2 inch air filter will find all matching products on this page. All 1 2 inch filters products shown here are manufactured by American Metal Filter Company (AMFCO) as premium washable aluminum mesh filtration products. Whether searching for 1/2 inch air filter by part number, nominal size, or application, each product shown here ships directly from AMFCO with full specifications and compatibility documentation.
Use our online custom filter configurator to specify your exact height and width dimensions. Once your initial custom order is complete, reordering identical filters is effortless through your online account.
The HIAS050 features 1/2″ exact depth—precisely 1/2 inch thick. Standard 1″ nominal filters measure 7/8″ actual. The 1/2″ exact uses lighter .025″ aluminum frame and 4-ply media optimized for ultra-slim installations.
Absolutely. The HIAS050 provides direct OEM replacement capability for discontinued filters from any manufacturer. Simply specify your existing filter’s exact dimensions when ordering.
Custom filter manufacturing typically requires 5-10 business days from order confirmation to shipment. Rush production is available for critical applications.
Yes, designed for repeated washing and reuse throughout its 5-10 year service life using water-based cleaning methods. The aluminum construction withstands repeated cleaning cycles without degradation.