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4940-12 has been discontinued
Discontinued September 5, 2025
This product was discontinued by the manufacturer.
MANUALS (2)
Product Highlights
–
16" x 20" x 1"
8 MERV Rating
Synthetic
Lifetime Warranty
Description
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PermaFilters clean the air by using static electricity as a safe, naturally occurring phenomenon. An electrostatic charge is generated by air flowing through a maze of static prone fibers. This unique characteristic improves air flow while providing maximum filtration. Airborne particles are attracted and held by the static charge, until released by washing. PermaFilter is rated by ASHRAE standards to meet MERV 8 specifications for particulate removal.
With over 60 filter sizes available including multiple thicknesses, PermaFilter is designed to fit any application. The permanent electrostatic design is rated MERV 8 to remove airborne particles, including dust, pollen, soot, pet dander, lint, spores, and other harmful particles in the air. The PermaFilter never needs replacing, and by following the cleaning instructions, you can easily remove the soil load for the next use.
Never needs replacing
Removes dust, pollen, and airborne pollutants
Unique electrostatic capabilities
Made of anti-microbial material
No harmful ozone or emissions
High dust and particulate holding capacity
No electricity required
Easy wash and clean design
Tested to meet MERV 8 rating
Available in 60 different sizes
Multiple thicknesses available including flex
Lifetime warranty
With over 60 filter sizes available including multiple thicknesses, PermaFilter is designed to fit any application. The permanent electrostatic design is rated MERV 8 to remove airborne particles, including dust, pollen, soot, pet dander, lint, spores, and other harmful particles in the air. The PermaFilter never needs replacing, and by following the cleaning instructions, you can easily remove the soil load for the next use.
Specs
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| Material: | Synthetic |
|---|---|
| Type: | Filter |
| Product Type: | HVAC Filter |
| Size: | 16" x 20" x 1" |
| MERV: | 8 |
| Warranty: | Lifetime |
Questions?
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Product Reviews
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Showing 1-1 of 1 reviews
Great filter, but must measure
These filters, when correctly fit, will be a premium replacement to the endless disposable filters. HOWEVER, these filters are actual sizes and not nominal sizes, like buying lumber. Our furnace manufacturer specifies 16 x 25 x 1 furnace filters, and these are what we've always ordered to fit the filter cage, which it turns out isn't the actual size of the both the filter and its space in the filter cage. Nu-Calgon furnace filters are the ACTUAL size. Therefore, measure your furnace filter before buying the Nu-Calgon PermaFilters. We discovered that our 16 x 25 x 1 furnace filters are actually 14 x 22 x1 and must order this size in the Nu-Calgon Permafilters. Just sayin...
Askalthea
Montana
2 years ago
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