4 Inch Filters

24x24x4 MERV 8 HVAC Air Filters

As Low as $12.31 per Filter!   24 x 24 x 4 MERV 8 HVAC Air Filters.   Actual Dimensions: 23 3/8” x 23 3/8” x 3 3/4”.  Filtration Rating: MERV 8, MPR 600, FPR 5.  Blocks and captures lint,...

20x25x4 MERV 8 HVAC Air Filters

As Low as $12.31 per Filter!     20 x 25 x 4 MERV 8 HVAC Air Filters.   Actual Dimensions: 19 ½” x 24 ½” x 3 ¾”.  Filtration Rating: MERV 8, MPR 600, FPR 5.  Blocks...

20x24x4 MERV 8 HVAC Air Filters

As Low as $12.31 per Filter!   20 x 24 x 4 MERV 8 HVAC Air Filters.   Actual Dimensions: 23 3/8” x 23 3/8” x 3 3/4”.  Filtration Rating: MERV 8, MPR 600, FPR 5.  Blocks and captures lint,...

20x20x4 MERV 8 HVAC Air Filters

As Low as $12.31 per Filter!   20 x 20 x 4 MERV 8 HVAC Air Filters.   Actual Dimensions: 19 ½” x 19 ½” x 3 ¾”.  Filtration Rating: MERV 8, MPR 600, FPR 5.  Blocks and...

18x24x4 MERV 8 HVAC Air Filters

As Low as $12.31 per Filter!   18 x 24 x 4 MERV 8 HVAC Air Filters Actual Dimensions: 17 3/8” x 23 3/8" x 3 3/4”Filtration Rating: MERV 8, MPR 600, FPR 5Blocks and captures lint, dust, pet dander, pollen, dust mites, & mold Our...

16x25x4 MERV 8 HVAC Air Filters

As Low as $12.31 per Filter!   16 x 25 x 4 MERV 8 HVAC Air Filters.   Actual Dimensions: 15 ½” x 24 ½” x 3 ¾”.  Filtration Rating: MERV 8, MPR 600, FPR 5.  Blocks and...

16x24x4 MERV 8 HVAC Air Filters

As Low As $12.31 Per Filter!  16 x 24 x 4 MERV 8 HVAC Air Filters.  Actual Dimensions: 15 ½” x 23 ½” x 3 ¾”.  Filtration Rating: MERV 8, MPR 600, FPR 5.  Blocks and captures...

16x20x4 MERV 8 HVAC Air Filters

As Low As $12.31 Per Filter!   16 x 20 x 4 MERV 8 HVAC Air Filters.  Actual Dimensions: 15 ½” x 19 ½” x 3 ¾”.  Filtration Rating: MERV 8, MPR 600, FPR 5.  Blocks and...

12x24x4 MERV 8 HVAC Air Filters

  As Low As $12.31 Per Filter!   12 x 24 x 4 MERV 8 HVAC Air Filters.   Actual Dimensions: 11 3/8” x 23 3/8” x 3 3/4”.   Filtration Rating: MERV 8, MPR 600, FPR 5.   Blocks and captures...