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20 x 25 x 4(3 3/4") - All 4" Furnace Filters

3M Filtrete 20 x 25 x 4 Filter. Case of 4.

Out of Stock

  • Genuine 3M Filtrete 20 x 25 x 4
  • Actual Size 19 1/2" x 24 1/2" x 3 3/4"
  • Allergen Reduction Filter, MERV 11 Equivalent
  • Case of 4
  • Free Shipping In Ontario & Quebec*
  • Pick Up at Store $145.00


Sold Out

20x25x4 MERV 8 Furnace Air Filter. Exact Size Size 19 1/2 x 24 1/2 x 3 3/4. Case of 4 by FurnaceFilters.Ca

In Stock

  • Standard 20 x 25 x 4 MERV 8 Rated Pleated Filters
  • Actual Size 19 1/2" x 24 1/2" x 3 3/4"
  • Exact Replacement for 3M Filtrete 20 x 25 x 4 Air Cleaning Filters
  • Made in Canada
  • Case of 4

20x25x4 MERV 11 Furnace Air Filter. Exact Size Size 19 1/2 x 24 1/2 x 3 3/4. Case of 4 by FurnaceFilters.Ca

In Stock

  • Standard 20 x 25 x 4 MERV 11 Rated Pleated Filters
  • Actual Size 19 1/2" x 24 1/2" x 3 3/4"
  • Exact Replacement for 3M Filtrete 20 x 25 x 4 Air Cleaning Filters
  • Made in Canada
  • Case of 4

20x25x4 MERV 13 Furnace Air Filter. Exact Size Size 19 1/2 x 24 1/2 x 3 3/4. Case of 4 by FurnaceFilters.Ca

Out of Stock

  • Standard 20 x 25 x 4 MERV 13 Rated Pleated Filters
  • Actual Size 19 1/2" x 24 1/2" x 3 3/4" 
  • Exact Replacement for 3M Filtrete 20 x 25 x 4 Air Cleaning Filters
  • Made in Canada
  • Case of 4


Sold Out