Permatron 3856-1820LRG | Our#: 178136
18" X 20" X 1" Lifetime Permanent Washable Filter
Permatron 3856-1820LRG | Our#: 178136
- Free Shipping & Free Returns
- 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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$56.95
(1 Filter for $56.95)
Your Discount: DF20
In Stock
Ships in 24 hours
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- Free Shipping & Free Returns
- 100% Compatibility Guarantee
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Product Details
Is this the right air filter for you?
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.
Additional Information
Product Documentation
How to change your furnace/air-conditioner/HVAC air filter
Estimated time: 10 minutes or less
Steps
Determine the location of your filter
Your forced air system will be similar, whether or not it is a heating (furnace) or cooling (AC) system – or both. The furnace filter housing/slot is located right next to the heating/cooling system’s air handler or blower. Your filter(s) may also be located in a return grille on the wall or ceiling of your home.
Determine the type/size of filter that you use
Typically, the dimensions or part number of the filter will be printed on the filter frame. Use this information to order a new filter.
Purchase a new air filter from DiscountFilters.com
Visit DiscountFilters.com and purchase a new filter. Use our filter finders to verify the correct match.
Remove the old filter
Turn off the power to the heating/cooling system and remove the old filter from its housing/slot and discard.
Insert the new filter
Pay attention to any airflow direction arrows printed on the frame of the new filter. Install the filter by sliding it into the filter housing/slot with the airflow arrow pointing towards the blower. If installing the filter in a wall or ceiling grille – the airflow arrow should point towards the wall or ceiling. Turn on the power to the forced air system.
Enjoy cleaner air!