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18 x 24 x 4 - All 4" Furnace Filters

18x24x4 Furnace Air Filter MERV 8. Case of 4 by FurnaceFilters.Ca

In Stock

  • Standard 18 x 24 x 4 MERV 8 Rated Pleated Filters
  • Actual Size 17 1/2" x 23 1/2" x 3 3/4"
  • Made In Canada¬†by FurnaceFilters.Ca
  • Case of 4