4" Inch Air Filters

12x24x4 MERV 10 ( FPR 6-7 ) AC and Furnace Pleated 4" Inch Air Filters. Case of 6. Exact Size: 11-3/8 x 23-3/8 x 3-3/4"

12x24x4 MERV 10 ( FPR 6-7 ) AC and Furnace Pleated 4" Inch Air Filters. Quantity 2. Exact Size: 11-3/8 x 23-3/8 x 3-3/4"

12x24x4 MERV 10 ( FPR 6-7 ) AC and Furnace Pleated 4" Inch Air Filters. Quantity 4. Exact Size: 11-3/8 x 23-3/8 x 3-3/4"

16x20x4 MERV 10 ( FPR 6-7 ) AC and Furnace Pleated 4" Inch Air Filters. Quantity 4. Exact Size: 15-1/2 x 19-1/2 x 3-3/4"

16x24x4 MERV 10 ( FPR 6-7 ) AC and Furnace Pleated 4" Inch Air Filters. Case of 6. Exact Size: 15-1/2 x 23-1/2 x 3-3/4"

16x24x4 MERV 10 ( FPR 6-7 ) AC and Furnace Pleated 4" Inch Air Filters. Quantity 2. Exact Size: 15-1/2 x 23-1/2 x 3-3/4"

16x25x4 MERV 10 ( FPR 6-7 ) AC and Furnace Pleated 4" Inch Air Filters. Quantity 4. Exact Size: 15-1/2 x 24-1/2 x 3-3/4"

20x25x4 MERV 10 ( FPR 6-7 ) AC and Furnace Pleated 4" Inch Air Filters. Quantity 4. Exact Size: 19-1/2 x 24-1/2 x 3-3/4"

Glasfloss 16x20x4 MERV 10 Pleated 4" Inch AC Furnace Air Filters. Case of 6. Actual Size: 15-1/2 x 19-1/2 x 3-3/4

Glasfloss 16x20x4 MERV 10 Pleated 4" Inch AC Furnace Air Filters. Quantity 2. Actual Size: 15-1/2 x 19-1/2 x 3-3/4

Glasfloss 16x24x4 MERV 10 Pleated 4" Inch AC Furnace Air Filters. Box of 4. Actual Size: 15-1/2 x 23-1/2 x 3-3/4

Glasfloss 16x25x4 MERV 10 AC & Furnace Filters. Case of 6. Actual Size: 15-1/2 x 24-1/2 x 3-3/4

Glasfloss 16x25x4 MERV 10 Pleated 4" Inch AC Furnace Air Filters. Quantity 2. Actual Size: 15-1/2 x 24-1/2 x 3-3/4

Glasfloss 18x24x4 MERV 10 AC & Furnace 4" Depth Air Filters. Box of 4. Actual Size: 17-1/2 x 23-1/2 x 3-3/4

Glasfloss 18x24x4 MERV 10 Pleated 4" Inch AC Furnace Air Filters. Quantity 2. Actual Size: 17-1/2 x 23-1/2 x 3-3/4

Glasfloss 20x20x4 MERV 10 AC & Furnace 4" Depth Air Filters. Box of 4. Actual Size: 19-1/2 x 19-1/2 x 3-3/4

Glasfloss 20x20x4 MERV 10 AC & Furnace Filters. 6 Pack. Actual Size: 19-1/2 x 19-1/2 x 3-3/4

Glasfloss 20x20x4 MERV 10 Pleated 4" Inch AC Furnace Air Filters. Quantity 2. Actual Size: 19-1/2 x 19-1/2 x 3-3/4

Glasfloss 20x24x4 MERV 10 (FPR 5-6) 4" Inch Furnace Air Filters. Case of 6. Actual Size: 19-3/8 x 23-3/8 x 3-3/4

Glasfloss 20x24x4 MERV 10 (FPR 5-6) 4" Inch Pleated Air Filters. Box of 2. Actual Size: 19-3/8 x 23-3/8 x 3-3/4