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18x18x1

  • 18x18x1 MERV 11 HVAC Air Filters

    18x18x1 MERV 11 HVAC Air Filters

    $16.49

    As Low As $6.59 Per Filter!  18 x 18 x 1 MERV 11 Air Filters for your HVAC System.   Actual Size: 17-3/4 x 17-3/4 x 3/4.   Filtration Rating: MERV 11, FPR 7, MPR 1000.   Protection: Smoke, Pet Dander, Pollen, Bacteria,...

  • 18x18x1 MERV 13 HVAC Air Filters

    18x18x1 MERV 13 HVAC Air Filters

    $17.49

    As Low As $7.33 Per Filter!   18 x 18 x 1 MERV 13 Air Filter for A/C and Furnace.  Actual Dimensions: 17-3/4 x 17-3/4 x 3/4.  Filter Rating: MERV 13, FPR 10, MPR 2200.  Our premium 18x18x1 MERV 13 filter will...

  • 18x18x1 MERV 8 HVAC Air Filters

    18x18x1 MERV 8 HVAC Air Filters

    $14.99

    As Low As $5.39 Per Filter!  18 x 18 x 1 MERV 8 HVAC Air Filters.  Actual Size: 17 3/4" x 17 3/4 x 3/4”.  Filtration Rating: MERV 8, MPR 600, FPR 5.  Defends: Lint, Dust, Pet Dander, Pollen, Dust Mites, &...