12" X 20" X 1" Lifetime Permanent Washable Filter
Permatron 3856-1220LRG | Our#: 178218
1 Year Purchase Guarantee - Free returns for a year, up to $1000 of purchase protection.
12" X 20" X 1" Low-Resistance, Electrostatic Permanent Washable Filter
(actual size - 11-1/2" X 19-1/2" X 7/8")
Never buy another filter! Our permanent washable filter is designed to provide great value and last a lifetime. This durable filter is constructed with a combination of woven polypropylene media supported by heavy-duty steel mesh in a galvanized steel frame. The filter carries a lifetime warranty and is ideal for heat pumps, sensitive 90+ efficient furnaces and systems with limited air flow. This is the best and last filter you will ever buy.
- Designed to minimize initial resistance to airflow
- Reduces the number of pollutants and allergens in recirculated air and keeps your HVAC system clean
- Uses natural static electricity to attract and capture airborne particles
- Washable - cleans up in minutes
- Includes anti-microbial polymeric protection
- Durable steel frame
- Dirt won't get caught in the filter during washing - due to specially-designed drainage ports in the filter frame
- Lifetime warranty
Clean Monthly by rinsing your filter with running water. For tough dirt and/or grease, use a mild detergent (i.e., 409 or Simple Green) and rinse thoroughly with warm water.
Average arrestance efficiency - 74%
Initial resistance - 0.07" w.g.
Dust holding capacity - 110 grams
By Richard h.
Filter ordering service
By Joan M.
Tired of box store filters
By Jonathan F.
Permanent Air Filter
Save Your Furnace Tip #6:
Foam gasket tape can be used to insure a tight filter fit and eliminate air filter bypass.