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This page lists all 3 18x25x1 replacement filters available from Metal Air Filters — precision-manufactured washable aluminum mesh filters engineered as direct OEM replacements for Carrier commercial HVAC equipment. All filters on this page are HI 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 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 ideal pre-filters in multi-stage Carrier commercial HVAC systems protecting downstream MERV 8 through HEPA filtration stages in rooftop units, air handlers, and split systems.
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All 3 Carrier-compatible washable aluminum mesh replacement filters available from Metal Air Filters, with nominal size, actual dimensions, and current pricing. Click any part number for full product details, specifications, and purchasing.
| Compatible Part No. | Nominal Size | Actual Dimensions | AMFCO SKU | Price |
|---|---|---|---|---|
| 18x25x1 Reusable MERV 6 Electrostatic A | 18x25x1 | 17.5” H x 24.5” W x 0.875″ D (±1/16”) | ECA101825 | $— |
| 18x25x1 Nominal Air Filter Pad Holding F | 18x25x1 | 17.5″ H x 24.5″ W x 0.875″ D | HPG101825 | $— |
| 18x25x1 Nominal Air Filter Pad Holding F | 18x25x1 | 17.5″ H x 24.5″ W x 0.875″ D (±1/16″) | HPGG101825 | $— |
The following specifications apply to the HI Series aluminum mesh filters on this page. Individual products vary by nominal size, actual dimensions, dust holding capacity, and OEM compatibility — see each product page for complete product-specific specifications.
| Specifications: | Details: |
|---|---|
| Frame Material | .030” thick mill-finished aluminum |
| Frame Construction | Precision-mitered corners secured with pop rivets; drain holes in three corners |
| MERV Rating | MERV 6 |
| Dust Holding Capacity | 93 grams per square foot |
| Rated Airflow | 300 FPM face velocity |
| Recommended Airflow Range | 250–350 FPM |
| Maximum Operating Temperature | 150°F |
| Recommended Final Resistance | 0.50 inches W.G. before cleaning |
| Compliance & Certifications | UL Classified 900 |
| Country of Origin | Made in USA |
Carrier commercial HVAC equipment is deployed across a wide range of commercial, institutional, and industrial building types. The following applications represent the primary use cases for 18x25x1 permanent washable aluminum mesh filters.
The ECA101825 18x25x1 washable electrostatic air filter delivers versatile performance across residential, commercial, and light industrial environments where permanent filtration, reduced maintenance costs, and consistent MERV 6 air quality are essential priorities. The passive electrostatic technology and robust aluminum construction make this filter suitable for continuous operation in diverse HVAC configurations without power connections, filter media replacements, or recurring filter disposal costs.
Homeowners choose the ECA101825 washable MERV 6 electrostatic air filter as a permanent replacement for disposable filters in standard residential forced-air heating and cooling systems, heat pumps, and split system equipment. The permanent washable air filter design eliminates quarterly trips to purchase replacement filters while delivering consistent MERV 6 filtration that captures household dust, pet dander, pollen, and mold spores that degrade indoor air quality and trigger allergy symptoms. Families with pets appreciate the washable washable electrostatic air filter’s effective pet hair and dander capture without the airflow restriction of high-MERV pleated filters that can reduce comfort and increase utility costs. The lightweight .030” aluminum frame makes handling easy during washing and reinstallation, and the 17.5” H x 24.5” W x 0.875″ D actual dimensions ensure precise fitment in standard residential filter returns and air handler cabinets. For homeowners who want reliable air quality management without the inconvenience and expense of frequent filter shopping, the ECA101825 permanent washable electrostatic air filter pays for itself within the first two to three years of service compared to recurring disposable filter costs.
Commercial property managers, building operators, and facilities teams choose the ECA101825 washable MERV 6 electrostatic air filter for office buildings, retail spaces, and institutional facilities where filter replacement overhead across dozens or hundreds of units represents significant ongoing labor and material costs. Building maintenance teams implement washable washable electrostatic air filter programs to convert recurring disposable filter replacement costs into periodic washing schedules, reducing annual filtration expenditures while maintaining consistent MERV 6 air quality throughout occupied spaces. The aluminum frame construction and passive electrostatic media perform reliably in standard commercial air handling units, fan coil units, and rooftop equipment operating within the 150°F maximum temperature rating—covering the vast majority of standard commercial HVAC applications. Property managers serving office towers, retail centers, medical offices, and mixed-use developments standardize on EC Series washable electrostatic filters across their portfolios, training maintenance staff on simple wash-and-reinstall procedures that replace the complexity of managing disposable filter inventories across multiple building sizes and specifications. The 18x25x1 configuration fits standard nominal filter locations found throughout commercial HVAC equipment from major manufacturers, simplifying retrofit adoption in both new and existing installations.
Light manufacturing operations, distribution centers, warehouse facilities, and laboratory environments with moderate particulate loading benefit from the ECA101825 washable electrostatic air filter’s ability to be cleaned and restored to full efficiency when dust loading conditions demand more frequent maintenance than standard HVAC systems. The passive electrostatic charge captures fine particulates in woodworking shops, light assembly operations, packaging facilities, and clean manufacturing environments, while the washable construction allows maintenance crews to restore filter performance without procurement delays or disposal procedures required by disposable alternatives. Light industrial facilities with multiple air handlers benefit from standardizing on permanent washable electrostatic filters that eliminate recurring procurement cycles and reduce the overhead of tracking filter inventory and delivery schedules across large facility footprints. The 150°F maximum temperature rating covers all standard light industrial HVAC applications where heating equipment or elevated ambient conditions fall within normal commercial operating parameters.
Apartment complexes, condominium developments, townhome communities, and property management companies operating commercial-grade HVAC equipment realize significant operational savings by deploying ECA101825 washable electrostatic filters in mechanical rooms, rooftop units, and central air handling systems. Multi-family properties with centralized HVAC infrastructure benefit from the long-term economics of permanent washable filters that eliminate recurring complete disposable filter costs across filter banks and multiple equipment locations. Property management companies serving large portfolios reduce maintenance costs by implementing in-house filter washing programs that require minimal training and eliminate the markup costs associated with filter procurement through HVAC contractors. Condominium associations and cooperative housing boards appreciate the transparent cost structure of washing-based maintenance programs, with predictable annual filtration budgets that support long-term capital planning and reserve fund management while maintaining consistent HVAC performance and indoor air quality for all residents.
Customers searching for 18x25x1 air filters, 18x25x1 air filter, 18x25x1, air filter 18x25x1, and 18 x 25 x 1 air filter will find all compatible washable aluminum mesh replacement filters on this page. All 18x25x1 products shown here are manufactured by American Metal Filter Company (AMFCO) as permanent, washable OEM replacements for Carrier commercial HVAC equipment. Whether searching for 18x25x1 air filters by Carrier part number or by nominal size, each filter shown here ships directly from AMFCO with full compatibility documentation.
Remove the filter and rinse with warm water from the clean side through to the dirty side until water runs clear. Air dry completely before reinstalling. Do NOT apply adhesive coatings—per manufacturer specs, it is not advisable to coat EC Series filters with any adhesive coating as this interferes with the passive electrostatic charge.
Wash every 3–6 months under normal residential conditions. Homes with pets or heavy particulate exposure may need more frequent washing. Commercial applications should establish schedules based on visual inspection and differential pressure monitoring.
The ECA101825 is rated MERV 6 with 85% dust arrestance efficiency at rated airflow (ASHRAE 52.2), capturing household dust, pollen, pet dander, mold spores, and household debris effectively.
The ECA101825 has actual dimensions of 17.5″ H x 24.5″ W x 0.875″ D, ±1/16″. The nominal size is 18x25x1. Actual depth is 7/8″ for the 1-inch nominal depth.
No—do NOT apply adhesive coatings or filter spray treatments. Per AMFCO manufacturer specifications, it is not advisable to coat EC Series filters with any adhesive coating, as these interfere with the passive triboelectric charging mechanism essential for MERV 6 filtration performance.
The ECA101825 is rated for maximum continuous operation at 150°F, covering all standard residential and commercial HVAC applications. Do not install in systems exceeding 150°F at the filter location.
The ECA101825 is compatible with all standard residential and commercial forced-air systems, heat pumps, and air handling equipment accepting 18x25x1 nominal filter sizes. Rated 300 FPM airflow with low resistance compatible with all standard HVAC fan motors. May be installed vertically or horizontally.
HEPA filters (MERV 17+) capture 99.97% of 0.3-micron particles but require high-static fans not present in standard HVAC systems. The ECA101825 is rated MERV 6 with low airflow resistance compatible with all standard residential and commercial HVAC equipment.
With proper care and regular washing, the ECA101825 is designed for decades of reliable service. Many users report 10–20+ years of service from properly maintained EC Series filters. The aluminum frame resists corrosion and the electrostatic media maintains charge regeneration capability through thousands of wash-and-reinstall cycles.
The ECA101825 fits standard 18x25x1 nominal filter housings with actual interior dimensions accommodating 17.5″ H x 24.5″ W x 0.875″ D filters. Verify your housing dimensions before ordering. The filter may be installed vertically or horizontally.