Nu-Calgo 4940-57 - PermaFilter Flex 16" X 25" X 1" Each
Nu-Calgon 4940-57 – PermaFilter Flex 16" x 25" x 1" (Each)
Product Description
The Nu-Calgon 4940-57 PermaFilter Flex 16" x 25" x 1" is a permanent, washable air filter engineered for long-term performance and superior indoor air quality. Designed with an electrostatic polypropylene media, this reusable filter captures airborne particles such as dust, pollen, lint, and pet dander more efficiently than standard disposable filters. The flexible aluminum frame allows easy installation in a variety of HVAC systems while maintaining structural durability through multiple wash cycles.
Perfect for residential, commercial, and light industrial applications, the PermaFilter Flex reduces maintenance costs and waste by eliminating the need for frequent filter replacements. Simply rinse, dry, and reinstall — it’s that easy.
Key Features
- Size: 16" x 25" x 1"
- Model: 4940-57
- Brand: Nu-Calgon
- Reusable, washable air filter with electrostatic polypropylene media
- Flexible frame design fits a wide range of return air grilles and HVAC systems
- Environmentally friendly — no disposable waste
- Designed for long-term use and consistent filtration efficiency
- Helps improve indoor air quality and system performance
Common Uses
Ideal for use in home furnaces, rooftop HVAC units, packaged systems, and air handlers where reusable filtration is preferred.
Technical Details
- Nominal Size: 16 x 25 x 1 inches
- Filter Type: Washable / Permanent Electrostatic
- Frame Material: Flexible Aluminum
- Media Material: Polypropylene Electrostatic Fabric
- MERV Rating Equivalent: Approx. MERV 8
- Weight: ≈ 0.9 lb
| Package Quantity | 1 Item |
|---|---|
| Item Returns | This item can be returned |
Write Your Own Review