Description
Product Overview
The HIA102025-1-59436 is an industrial-grade, permanent aluminum mesh filter specifically engineered as a high-performance replacement for the LENNOX 59436. Optimized for Lennox commercial HVAC systems and economizer sections, this 20x25x1 washable filter provides superior pre-filtration to safeguard critical components from dust, lint, and airborne debris. Constructed with 5-ply corrugated aluminum media, it offers high efficiency and low maintenance requirements for large-scale facility cooling and ventilation units.
OEM Direct Compatibility: This filter is precision-manufactured to meet the exacting technical standards of the Lennox 59436 specification. With an actual size of 19.5″ x 24.5″ x 0.875″, it provides a precise fit within Lennox filter tracks, preventing the air bypass common with generic alternatives. For more information on Lennox commercial service and component specifications, visit the Lennox Commercial HVAC Official Site.
Key Benefits
- Washable & Permanent: Eliminates the recurring cost of disposable filters—built for a 5-10 year service life with regular maintenance.
- Lennox 59436 Specification: Exact dimensional and performance bypass for Lennox commercial economizers.
- Rugged Extruded Frame: Constructed from .030″ aluminum alloy with mitered corners for industrial durability.
- High Particle Capture: 5-ply corrugated mesh media holds up to 65g of dust per square foot.
- UL 900 Class 1 Rated: Certified fire safety for commercial buildings, rated for continuous operation at 275°F.
- Enhanced System Airflow: Low initial pressure drop ensures consistent airflow, protecting motors and reducing energy use.
Technical Specifications
| Characteristic | Measurement / Detail |
|---|---|
| Nominal Size | 20″ x 25″ x 1″ |
| Actual Dimensions | 19.5″ x 24.5″ x 0.875″ |
| Part Number Replace | Lennox 59436 |
| Media Type | 5-Ply Corrugated Aluminum Mesh Pack |
| Frame Material | .030 extruded aluminum alloy |
| Arrestance Efficiency | 43% (Average) |
| Dust Holding Capacity | 68 grams per square foot |
| Temperature Rating | 275°F (Continuous) |
| Safety Rating | UL 900 Class 1 |
| Weight | 3.5 lbs |
Industrial Longevity & Efficiency
The Lennox 59436 compatible filter is designed for the rigorous demands of rooftop units in retail centers, government facilities, and schools. Its all-aluminum construction prevents corrosion and handles high moisture environments without losing structural integrity. By capturing the bulk of heavy particulate matter, it significantly extends the intervals between cleaning for expensive secondary filtration stages, ensuring long-term HVAC system efficiency and reduced labor costs.
Maintenance Guide
Inspect filters every 30 to 60 days. To clean, spray thoroughly with water. For greasy environments, use a mild shop detergent. The frame features mitered corners with drainage holes to ensure the filter dries rapidly—typically within 30 minutes—minimizing system downtime and maintenance intervals.
Frequently Asked Questions
Yes. This filter is manufactured specifically to the actual dimensions and high-flow requirements demanded by Lennox factory economizer sections using the 59436 part number.
Yes, it is UL 900 Class 1 rated and withstands continuous temperatures up to 275°F, making it suitable for all commercial HVAC applications.
