FILTI FILTI-20x24x1-W | Our#: 199516

FILTI® Permanent Washable MERV 13 Filter - 20" X 24" X 1"

FILTI FILTI-20x24x1-W | Our#: 199516

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  •  100% Compatibility Guarantee

Designed to be used & re-used

  • Outperforms other washable filters
  • Reduces pollen, dust, lint, dust mite debris, pet dander & mold spores
  • Removes bacteria & virus carriers
  • Uses specialized nanofiber technology
  • Use again and again - simply rinse, reuse, repeat!
  • Actual Dimensions: 19 ½" x 23 ½" x ⅞"
  •  Fast Shipping & Free Returns
  •  100% Compatibility Guarantee
Frequently Purchased Together
Frequently Purchased Together

Product Details

The FILTI® permanent washable filter uses specialized nanofiber technology to offer a MERV 13 efficiency rating. The FILTI® filter does what other washable filters cant; providing permanent, high efficiency filtration. The FILTI® filter provides 3 layers of protection - LAYER 1 - meltblown layer designed to capture larger particulate matter and engineered for increased dust-holding capacity / LAYER 2 - patent-pending nanofiber technology captures the smallest particles and ultra-fine pollutants  / LAYER 3 - downstream scrim acts as a supporting layer for the nanofiber and provides additional reinforcement


  • FILTI® Permanent Washable MERV 13 Filter - 20" X 24" X 1"
  • Uses Patent-Pending NanoFiber Technology - out-performs electrostatic washable filters - and doesn't become less efficient after washing
  • MERV 13 efficiency rating while filtering atmospheric particulate matter that an average disposable filter doesn't
  • The FILTI® filter could save you up to $100 a year, upwards of $1,000 over the course of 10 years
  • Save our landfills! Over the course of 20 years, the average homeowner would contribute 16x more waste to landfills using a disposable filter versus a FILTI® washable filter
  • Use again and again - simply rinse, reuse, repeat!
  • Made in the USA

What does this air filter remove?


Do you want to know about the technical specs?

Nominal Dimensions
20 x 24 x 1"
Actual Dimensions
19 ½ x 23 ½ x ⅞"
Filter Media
Specialized nanofiber media
Filter Support Grid
Expanded metal grid
Durable plastic
Max Temperature
180F (82C) continuous service, peak 225F (107C)
Max Humidity
Resistant to 100% R.H.
Initial Resistance
0.57" WC
Rated Velocity
295 FPM

Additional Information

How to change your furnace/air-conditioner/HVAC air filter

Estimated time: 10 minutes or less


  1. 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.

  2. 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.

  3. Purchase a new air filter from

    Visit and purchase a new filter. Use our filter finders to verify the correct match.

  4. Remove the old filter

    Turn off the power to the heating/cooling system and remove the old filter from its housing/slot and discard.

  5. 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!