1 Inch Depth

20x20x1 MERV 8 HVAC Air Filters.

As Low as $5.03 per Filter!   20 x 20 x 1 MERV 8 HVAC Air Filters.    Actual Size: 19 ½” x 19 ½” x ¾”.    Filtration Rating: MERV 8, MPR 600, FPR 5. ...

20x20x1 MERV 13 HVAC Air Filters

As Low as $8.21 per Filter!    20 x 20 x 1 MERV 13 Air Filter for A/C and Furnace.    Actual Dimensions: 19-1/2 x 19-1/2 x 3/4.    Filter Rating: MERV 13, FPR 10, MPR 2200.     Our premium...

20x20x1 MERV 11 HVAC Air Filters

As Low as $6.54 per Filter!   20 x 20 x 1 MERV 11 Air Filters for your HVAC System.   Actual Size: 19-1/2 x 19-1/2 x 3/4.   Filtration Rating: MERV 11, FPR 7, MPR 1000.     Protection: Smoke, Pet Dander,...