Permatron 3856-1820LRG | Our#: 178136
18" X 20" X 1" Lifetime Permanent Washable Filter
Permatron 3856-1820LRG | Our#: 178136
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- 100% Compatibility Guarantee
Designed to be used & re-used
- Filter is washable & permanent
- Reduces contaminants & allergens
- Helps keep your HVAC system clean
- Creates cleaner indoor air
- Last filter you'll ever need!
- Actual Dimensions: 17 ½" x 19 ½" x ⅞"
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- Fast Shipping & Free Returns
- 100% Compatibility Guarantee
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Product Details
If you want to protect your heating and cooling system from dust and dirt - and you are tired of buying disposable air filters, this is the air filter for you! This durable washable filter is designed to provide great value and last a lifetime. Don't drive around town looking for a washable air conditioner filter or furnace filter. Order online and will quickly ship to your front door!
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Designed to minimize initial resistance to airflow
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Reduces the number of pollutants and allergens in recirculated air and keeps your HVAC system clean
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Uses natural static electricity to attract and capture airborne particles
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Includes anti-microbial polymeric protection
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Durable steel frame
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Dirt won't get caught in the filter during washing - due to specially-designed drainage ports in the filter frame
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Lifetime warranty
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Wash every 30 days under normal use
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Made with pride in the USA
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100% free returns on all filters
What does this air filter remove?
Do you want to know about the technical specs?
Nominal Dimensions
18 x 20 x 1"
Actual Dimensions
17 ½ x 19 ½ x ⅞"
Filter Media
Woven polypropylene media
Filter Support Grid
Heavy duty steel mesh
Frame
Rugged steel frame
Max Temperature
180F (82C) continuous service, peak 225F (107C)
Max Humidity
Resistant to 100% R.H.
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