Description
Product Overview
The HIA102025-1-FLR00537 is a professional-grade, permanent filtration solution specifically designed to replace the TRANE part number FLR00537. Engineered for Trane commercial HVAC systems, this 20x25x1 washable aluminum mesh filter provides high-efficiency pre-filtration for rooftop units (RTUs), air handlers, economizer systems, and makeup air applications. Its 3-ply corrugated aluminum mesh construction captures large airborne particulates, protecting expensive secondary HEPA filters and sensitive system components while maintaining the high-volume airflow required for optimal equipment performance.
OEM Direct Compatibility: This model is a 100% compatible alternative to the factory FLR00537 part. It matches the exact physical requirements (actual size 19.5″ x 24.5″ x 0.875″), ensuring a precise, rattle-free fit in Trane filter tracks. Proper fitment is critical to eliminate air bypass, which can cause coil fouling and increase energy consumption in Trane commercial units.
Permanent Washable Design: Unlike disposable filters that require monthly replacement at $22-42 per unit ($264-504 annually), the HIA102025-1-FLR00537 washable design provides 5-10 years of continuous service. Simple water-based cleaning every 30-90 days eliminates recurring purchase costs while reducing landfill waste. The three integrated corner drain holes ensure complete moisture removal after each wash cycle, maintaining optimal filtration performance throughout the filter’s service life.
This filter excels in commercial applications including multi-family housing, retail spaces, office complexes, hospitals, and light industrial facilities utilizing Trane air handling equipment. The 275°F continuous temperature rating makes it ideal for rooftop units handling outdoor fresh air intake, where extreme ambient conditions would rapidly degrade standard filters. Manufactured in the USA by American Metal Filter Company using premium domestic aluminum, the HIA102025-1-FLR00537 combines OEM compatibility with superior washable performance and environmental responsibility.
Key Benefits of the HIA102025 Trane FLR00537 Compatible Filter
- Permanent Washable Design: Clean and reuse for 5-10 years—eliminates the recurring cost and waste of disposable filters, saving $1,320-2,520 over the filter’s lifetime compared to monthly replacements
- Precision OEM Compatibility: 100% dimensionally accurate replacement for Trane FLR00537 specification—guaranteed fit in existing filter tracks with no modification required
- Industrial Durability: Built with heavy-duty .030″ aluminum frame and 3-ply corrugated aluminum mesh media designed for continuous commercial HVAC operation
- High Dynamic Performance: 43% dust arrestance efficiency captures large particulates while maintaining low initial static pressure, protecting downstream components without restricting airflow
- UL 900 Class 1 Certified: Rated for continuous operation in temperatures up to 275°F (135°C)—meets strict fire safety standards for commercial and industrial buildings
- Rapid Drain Design: Features three corner drain holes ensuring complete water removal after cleaning cycles, preventing moisture retention that could reduce efficiency or promote microbial growth
Technical Specifications
The HIA102025-1-FLR00537 is engineered to meet Trane OEM specifications while providing the washable performance advantages of permanent aluminum construction. The 1″ nominal depth (7/8″ actual) fits standard Trane air handler filter tracks designed for the FLR00537 part. All dimensions and specifications match original equipment requirements to ensure proper system integration without modification.
The 3-ply corrugated aluminum mesh media provides 43% average dust arrestance efficiency, making this an ideal pre-filter for commercial Trane rooftop units and air handlers. The .030″ extruded aluminum alloy frame maintains dimensional stability throughout the 5-10 year service life, even when exposed to continuous 275°F operating temperatures. UL 900 Class 1 certification ensures compliance with commercial building fire safety codes.
| Specifications: | Details: |
|---|---|
| Model Number | HIA102025-1-FLR00537 |
| Replaces OEM Part | Trane FLR00537 |
| Nominal Size | 20″ x 25″ x 1″ |
| Actual Dimensions | 19.5″ x 24.5″ x 0.875″ (19-1/2 x 24-1/2 x 7/8) |
| Compatible Equipment | Trane commercial rooftop units, air handlers, economizer systems, and makeup air applications |
| Filter Media | 3-Ply Corrugated Aluminum Mesh Pack |
| Frame Material | .030″ extruded aluminum alloy |
| Frame Construction | Precision-mitered corners with aluminum rivets |
| Drainage Features | 3 corner drain holes for complete water removal |
| Arrestance Efficiency | 43% (Average per ASHRAE 52.1) |
| Dust Holding Capacity | 81 grams per square foot |
| Initial Pressure Drop | 0.08-0.12″ w.g. @ 300 FPM (clean filter) |
| Recommended Final Resistance | 0.50″ w.g. (water gauge) before cleaning |
| Maximum Operating Temperature | 275°F (135°C) continuous |
| Safety Certifications | UL 900 Class 1 |
| Weight | 3.8 lbs |
| Cleaning Interval | 30-90 days (varies by application and loading) |
| Service Life | 5-10 years with proper maintenance |
| Washability | Hundreds of cleaning cycles with water-based methods |
| Manufacturer | American Metal Filter Company (AMFCO) |
| Country of Origin | Made in USA |
Industrial & Commercial Applications
Multi-Family Housing & Apartment Complexes
Trane rooftop units are widely deployed in multi-family housing where centralized HVAC systems serve multiple residential units. The HIA102025-1-FLR00537 compatible filter provides 5-10 year service life in these applications, dramatically reducing maintenance labor costs compared to monthly disposable filter replacement across dozens or hundreds of units. The washable design eliminates recurring filter purchase expenses and waste disposal fees, while the 275°F rating handles rooftop equipment exposed to extreme summer temperatures. Property managers benefit from extended cleaning intervals (30-90 days) that reduce tenant disruption and maintenance crew workload.
Retail Spaces & Shopping Centers
Commercial retail facilities require reliable HVAC filtration to maintain customer comfort and protect merchandise from dust accumulation. The HIA102025-1-FLR00537’s 43% dust arrestance captures particulates before they reach expensive secondary filtration, extending the life of MERV 8-11 pleated filters and reducing total filtration costs. The permanent aluminum construction withstands the continuous operation typical of retail spaces with extended hours (12-16 hours daily), while the washable design allows cleaning during off-hours without inventory costs or supply chain delays. The 20x25x1 size is popular in Trane rooftop units serving larger retail HVAC zones and commercial spaces.
Office Buildings & Corporate Facilities
Modern office buildings with Trane commercial HVAC systems benefit from the HIA102025-1-FLR00537’s precision OEM compatibility and washable performance. The filter’s low initial pressure drop (0.08-0.12″ w.g.) minimizes energy consumption while protecting downstream coils and components from large particulate damage. Office facility managers appreciate the 5-10 year service life that eliminates recurring budgeting for filter replacements, while the UL 900 Class 1 certification ensures compliance with commercial building codes for fire safety.
Healthcare & Educational Facilities
Hospitals, medical centers, and educational institutions with Trane equipment require reliable filtration to protect sensitive populations and expensive diagnostic equipment. The HIA102025-1-FLR00537’s permanent aluminum construction eliminates concerns about filter media shedding that can occur with degraded disposable filters. The washable design allows facility staff to maintain consistent filtration performance without supply chain dependencies—critical for facilities operating 24/7. The 20x25x1 size is common in Trane rooftop units and air handlers serving operating rooms, patient wards, classrooms, and administrative spaces where air quality directly impacts occupant health and productivity.
Light Industrial & Manufacturing Facilities
Light industrial environments with Trane equipment face elevated particulate loading from manufacturing processes, packaging operations, and material handling. The HIA102025-1-FLR00537’s 3-ply aluminum mesh construction captures lint, dust, and larger airborne debris, significantly extending the life of expensive final-stage filters. The 81 g/sq ft dust holding capacity provides 30-90 day cleaning intervals even in moderate industrial loading, while the washable design allows on-site cleaning without production interruption. The 275°F rating handles industrial process heat that would rapidly degrade disposable filters.
Construction Features
3-Ply Aluminum Mesh Media
The HIA102025-1-FLR00537 features 3 layers of corrugated aluminum mesh arranged in a criss-cross pattern, providing effective pre-filtration with 43% dust arrestance efficiency. The multi-layer design captures large airborne particulates while maintaining low resistance to airflow—essential for commercial HVAC systems where excessive pressure drop increases energy consumption and reduces equipment life. Each ply progressively filters air as it moves through the media depth, achieving efficient particle capture while preserving system airflow performance. The corrugated pattern increases surface area compared to flat mesh, extending the interval between cleaning cycles and providing 81 g/sq ft dust holding capacity.
Heavy-Duty .030″ Aluminum Frame
Constructed from .030″ extruded aluminum alloy, the frame provides structural rigidity essential for commercial HVAC applications operating 12-24 hours daily. The aluminum construction resists corrosion from moisture and chemical exposure common in commercial HVAC environments, maintaining dimensional stability throughout the filter’s 5-10 year service life. The frame supports high-volume airflow systems without flexing or warping, even at operating temperatures up to 275°F. Precision-mitered corners with aluminum rivets ensure the frame maintains the exact 19.5″ x 24.5″ x 0.875″ dimensions required for proper fit in Trane filter tracks.
Integrated Corner Drain System
Three strategically placed corner drain holes ensure complete water removal after cleaning cycles. The drainage system accelerates drying time from 5-7 hours to 2-4 hours, preventing moisture retention that could reduce filtration efficiency or promote microbial growth in the media. Proper drainage is essential for maintaining the filter’s washable performance over hundreds of cleaning cycles—moisture left in the media can cause oxidation on aluminum surfaces and reduce dust holding capacity. The drain holes are positioned to allow gravity drainage when the filter is oriented vertically or horizontally during the drying process.
UL 900 Class 1 Fire Safety Certification
The HIA102025-1-FLR00537 meets UL 900 Class 1 fire safety standards for commercial and industrial buildings. This certification ensures the filter can withstand continuous operation at temperatures up to 275°F (135°C) without compromising structural integrity or creating fire hazards. The all-aluminum construction provides non-combustible performance critical for commercial HVAC safety compliance—unlike filters with plastic components or organic materials that can melt, burn, or release toxic fumes at elevated temperatures. UL 900 Class 1 certification is often required by commercial building codes, insurance policies, and occupancy permits.
Maintenance & Cleaning
Cleaning Frequency Guidelines
The HIA102025-1-FLR00537 requires cleaning every 30 to 90 days depending on particulate loading conditions. Light-duty applications (office buildings, low-occupancy facilities) typically achieve 90-day intervals, while moderate loading (retail spaces, multi-family housing) requires 45-60 day cleaning. Heavy-duty environments (light industrial, high-traffic facilities) may require monthly cleaning. Monitor differential pressure across the filter using a manometer—clean when pressure drop reaches 0.50″ w.g. to maintain energy efficiency and airflow performance. Extended intervals between cleanings are acceptable until pressure indicates loading, but do not allow pressure to exceed 0.75″ w.g. as heavily loaded media becomes more difficult to clean completely.
Water-Based Cleaning Method
To clean the HIA102025-1-FLR00537, remove the filter from the equipment and spray with water using a standard garden hose or pressure washer (up to 1500 PSI maximum). Direct water flow from the clean side (downstream) toward the dirty side (upstream) to push accumulated particulate out of the media rather than forcing it deeper into the mesh layers. For light to moderate loading, water alone is sufficient. For heavy grease accumulation or sticky residue, apply an aluminum-safe detergent (pH 7-9 neutral cleaners work best), allow 10-15 minutes soak time, then rinse thoroughly with clean water until runoff is clear. Avoid harsh alkaline cleaners (pH >10) or acidic cleaners (pH <6) that can corrode aluminum over time.
Drying Requirements
After rinsing, shake the filter to remove excess water and orient vertically or at a 45-degree angle to allow the three corner drain holes to release trapped moisture. Air dry the filter completely before reinstallation—typically 2-4 hours in ambient conditions, or accelerate drying with compressed air (30-40 PSI) blown through the media from the clean side. Complete drying is critical: moisture retained in the media reduces dust holding capacity on the next service cycle and can promote aluminum oxidation or microbial growth. In commercial settings, maintain a spare HIA102025-1-FLR00537 filter to allow one to remain in service while the other is being cleaned and dried, eliminating system downtime during maintenance.
Inspection During Maintenance
During each cleaning cycle, inspect the filter for damage: check that all 3 media plies remain intact without tears or punctures, verify the aluminum frame maintains dimensional accuracy (19.5″ x 24.5″ x 0.875″), and examine corner rivets for security. The filter should maintain its original dimensions and structural integrity throughout hundreds of wash cycles over 5-10 years. If inspection reveals torn media, bent frames, or loose rivets, the filter should be repaired or replaced. Minor aluminum oxidation (white powdery deposits) is normal and does not affect performance—it can be removed with a soft brush if desired, but is not necessary for continued operation.
Installation
Pre-Installation Verification
Before installing the HIA102025-1-FLR00537, verify your Trane equipment uses the FLR00537 filter specification by checking the equipment service manual or measuring the existing filter track opening. The filter track should measure approximately 19-5/8″ to 19-3/4″ wide x 24-5/8″ to 24-3/4″ high x 7/8″ to 1″ deep to accommodate the HIA102025-1-FLR00537’s actual dimensions of 19.5″ x 24.5″ x 0.875″. If you’re replacing an existing FLR00537 filter, the HIA102025-1-FLR00537 will fit precisely in the same location. Do not force-fit the filter into undersized tracks, as this can bend the frame and compromise filtration efficiency.
Filter Orientation & Installation
Slide the HIA102025-1-FLR00537 into the filter track with the media plies perpendicular to the airflow direction. Trane rooftop units and air handlers typically have filter tracks with retention clips or spring-loaded tracks—ensure the filter seats completely with the frame edges flush against the track stops. The HIA102025-1-FLR00537 can be installed in any orientation (horizontal, vertical, or angled) as the rigid aluminum construction prevents media sagging regardless of position. Some Trane units may have an airflow direction indicator on the equipment—if present, install the filter so air flows from the dirty side to the clean side as marked. If no indicator is present, install with airflow moving toward the blower motor.
Initial System Startup
After installation, start the HVAC system and verify proper airflow by checking supply register output and listening for abnormal sounds that might indicate filter obstruction or improper seating. Monitor initial differential pressure across the HIA102025-1-FLR00537—expect 0.08-0.12″ w.g. for a clean filter at typical face velocities (300-500 FPM). If pressure drop exceeds 0.20″ w.g. on a new filter, verify the filter is not installed backwards and check for airflow obstructions. During the first week of operation, recheck differential pressure daily to establish baseline performance for your specific system and loading conditions. This baseline helps optimize future cleaning schedules.
Filter Track Compatibility Notes
The HIA102025-1-FLR00537 is designed for Trane filter tracks engineered for the FLR00537 specification. If your Trane equipment has been modified or if you’re uncertain about filter track dimensions, measure the existing opening before ordering. The filter’s actual dimensions (19.5″ x 24.5″ x 0.875″) must fit with approximately 1/16″ to 1/8″ clearance on all sides for proper installation and removal. Filter tracks that are significantly oversized (>1/4″ clearance) may allow bypass airflow around the filter edges, reducing filtration efficiency. If you discover track dimensions don’t match, contact Trane technical support or American Metal Filter Company for sizing assistance.
Complementary Products
The HIA102025-1-FLR00537 Trane Compatible Aluminum Mesh Filter excels as a pre-filtration stage, but complete HVAC protection in commercial air handling systems requires complementary secondary filtration products. By combining this washable aluminum mesh pre-filter with specialized higher-efficiency secondary filters, you achieve optimal air quality while protecting expensive downstream filtration equipment in Trane commercial HVAC installations.
The 43% dust arrestance efficiency of this aluminum mesh pre-filter makes it the ideal first stage for filtration systems requiring OEM Trane compatibility where permanent washable construction eliminates recurring replacement costs while capturing large particulates that would rapidly load secondary filters.
Higher Efficiency Secondary Filtration
After the HIA102025-1-FLR00537 captures large particulates, enhance air quality with higher efficiency secondary filters:
• Reusable Foam Air Filters – Polyester foam media captures smaller particles (85-90% efficiency) that pass through mesh pre-filters, providing washable secondary filtration for improved air quality in multi-stage systems
• Electrostatic Air Filters – Electrostatically charged polypropylene media achieves 88-92% efficiency on sub-micron particles, ideal as secondary stage after aluminum pre-filter for maximum air quality without disposable filter replacement
• Pad Holding Frames – Aluminum or galvanized steel frames designed to hold disposable pad filters as high-efficiency secondary stage, allowing use of MERV 8-11 disposable pads downstream of the permanent HIA102025-1-FLR00537 pre-filter
Enhanced Depth Aluminum Filters – Extended Capacity
For applications requiring longer cleaning intervals or higher dust loading capacity:
• HIA202025 – 20x25x2 Aluminum Mesh Filter – Double-depth 2″ filter provides 162 g/sq ft capacity (2x versus 1″ depth), extending cleaning intervals to 60-120 days
• HIA402025 – 20x25x4 Aluminum Mesh Filter – Maximum 4″ depth with 243 g/sq ft capacity (3x versus 1″ depth) for quarterly to semi-annual cleaning in heavy loading applications
Pad Filter Systems for Cost-Effective Secondary Filtration
Combine permanent aluminum pre-filtration with disposable pad secondary stages:
• Custom Pad Holding Frames – Aluminum or galvanized steel frames accept disposable MERV 8-11 pad filters as secondary stage after HIA102025-1-FLR00537 pre-filter, protecting expensive final filters while extending service life
• Disposable Pad Filters – Polyester or fiberglass media pads in various efficiency levels (MERV 6-11) for use in pad holding frames, providing cost-effective secondary filtration after permanent aluminum pre-filter captures large particulates
Frequently Asked Questions
Is this a direct replacement for Trane part FLR00537?
Yes. The HIA102025-1-FLR00537 is precision-manufactured to the exact actual dimensions (19.5″ x 24.5″ x 0.875″) and performance specifications required for Trane units using the FLR00537 part. The filter matches OEM specifications for frame dimensions, media construction, and filtration efficiency, ensuring proper fit and function in Trane filter tracks without modification.
What is the filtration efficiency?
This 3-ply corrugated aluminum mesh filter provides approximately 43% average dust arrestance per ASHRAE 52.1 testing standards, making it an ideal pre-filter for commercial Trane rooftop units and air handlers. The efficiency is optimized to capture large airborne particulates (lint, dust, debris) while maintaining low pressure drop essential for energy-efficient HVAC operation.
How do I clean this filter?
Remove the filter from the equipment and spray with water using a garden hose or pressure washer (up to 1500 PSI maximum pressure). For light to moderate loading, water alone is sufficient. For heavy grease accumulation or sticky residue, use an aluminum-safe neutral pH detergent (7-9), allow 10-15 minutes soak time, then rinse thoroughly until runoff is clear. Allow the filter to air dry completely (2-4 hours) before reinstallation, using the three corner drain holes to release trapped moisture.
Is it UL rated for commercial use?
Yes, the HIA102025-1-FLR00537 is UL 900 Class 1 rated, which means it meets strict fire safety standards for commercial and industrial buildings. This certification ensures the filter can withstand continuous operation at temperatures up to 275°F (135°C) without compromising structural integrity or creating fire hazards. UL 900 Class 1 certification is often required by commercial building codes and insurance policies.
What is the maximum operating temperature?
The all-aluminum construction allows for continuous operation in temperatures up to 275°F (135°C). This makes the filter ideal for Trane rooftop units exposed to extreme ambient conditions, equipment rooms with elevated temperatures, or applications near heat-generating processes. The 275°F rating significantly exceeds the capability of disposable filters with plastic or paper components that degrade rapidly at elevated temperatures.
Does it have drainage holes for cleaning?
Yes, the filter features three strategically placed corner drain holes to ensure complete moisture removal after washing. The drainage system reduces drying time from 5-7 hours to 2-4 hours, preventing water retention that could reduce filtration efficiency or promote microbial growth in the media. The drain holes work regardless of filter orientation (horizontal or vertical) during the drying process.
Is this a permanent filter?
Yes, the HIA102025-1-FLR00537 is a permanent metal mesh filter designed to be washed and reused rather than discarded. With proper maintenance (cleaning every 30-90 days), the filter provides 5 to 10 years of continuous service—potentially hundreds of wash cycles. This eliminates the recurring cost of disposable filter replacement ($264-504 annually) and reduces environmental waste, while providing consistent filtration performance throughout its service life.
Where is this filter manufactured?
This filter is 100% manufactured in the United States by American Metal Filter Company (AMFCO) using premium domestic aluminum. Manufacturing in the USA ensures consistent quality control, supports domestic jobs, and provides rapid production turnaround for replacement orders. AMFCO has specialized in metal mesh filters since 1985, with expertise in OEM-compatible replacement filters for commercial HVAC equipment.
Why is the actual size smaller than 20x25x1?
Industry standard nominal sizing (20x25x1) represents the filter track opening dimensions, while actual filter dimensions are slightly smaller to allow proper fit. The actual dimensions of 19.5″ x 24.5″ x 0.875″ provide approximately 1/8″ clearance on each side for easy installation and removal from the filter track. This sizing convention is standard across the HVAC industry—filters labeled 20x25x1 universally have actual dimensions approximately 1/2″ smaller on length and width to fit standard tracks.
Can I use this in residential systems?
While the HIA102025-1-FLR00537 can be used in residential systems that accommodate Trane commercial equipment or have compatible 20x25x1 filter tracks, it is primarily designed for high-velocity commercial and industrial Trane HVAC units. Residential applications with standard 1″ filter tracks and lower airflow volumes may achieve better value with standard HIA Series filters designed for residential specifications. However, if your residential system uses Trane commercial equipment or you need the durability and washable performance of aluminum mesh, the HIA102025-1-FLR00537 performs well in residential applications.
Why Choose the HIA102025 Trane FLR00537 Compatible Filter?
The HIA102025-1-FLR00537 provides precision OEM compatibility for Trane commercial HVAC systems, delivering exact-fit replacement for Trane part FLR00537. With washable aluminum construction providing 5-10 years of service life, UL 900 Class 1 certification for 275°F continuous operation, and 43% dust arrestance efficiency, this filter eliminates recurring replacement costs while ensuring reliable performance in Trane rooftop units and air handlers.
The precision-engineered 19.5″ x 24.5″ x 0.875″ dimensions guarantee proper fit in Trane filter tracks, eliminating air bypass that causes coil fouling and increases energy consumption. Unlike disposable filters requiring monthly replacement at $22-42 per unit ($264-504 annually), the HIA102025-1-FLR00537’s washable design provides hundreds of cleaning cycles over 5-10 years, saving $1,320-2,520 in recurring filter costs while reducing landfill waste. Simple water-based cleaning every 30-90 days maintains optimal performance without inventory management or supply chain dependencies.
Made in the USA by American Metal Filter Company using premium domestic aluminum, the HIA102025-1-FLR00537 combines industrial durability with environmental responsibility. The 3-ply corrugated aluminum mesh captures large particulates while maintaining low pressure drop essential for energy-efficient HVAC operation, protecting expensive secondary filters and sensitive system components. Three integrated corner drain holes ensure complete moisture removal after cleaning, maintaining filtration performance throughout the filter’s service life.
Whether you’re managing multi-family housing, retail spaces, office buildings, healthcare facilities, or light industrial operations with Trane commercial HVAC equipment, the HIA102025-1-FLR00537 delivers OEM compatibility, washable convenience, and long-term cost savings. Eliminate monthly filter replacements, reduce maintenance labor, and protect your Trane equipment with a permanent filtration solution engineered to Trane FLR00537 specifications.
Authoritative Resources
For detailed technical support, equipment specifications, installation manuals, and Trane commercial HVAC product information, we recommend visiting the official Trane Commercial HVAC website. This authoritative resource provides comprehensive documentation for Trane air handlers, rooftop units, and commercial HVAC systems to help verify filter compatibility, access technical specifications, and contact manufacturer support for equipment-specific questions.
