20x20 box

Glasfloss 16x20x1 MERV 10 (FPR 5-6) Pleated Air Filters. Box of 6. Actual Size: 15-1/2 x 19-1/2 x 7/8

Glasfloss 20x30x1 MERV 10 (FPR 5-6) Pleated Air Filters. Box of 6. Actual Size: 19-5/8 x 29-5/8 x 7/8

Glasfloss 14x20x2 MERV 10 Pleated 2" Inch AC Furnace Air Filters. Box of 3. Actual Size: 13-1/2 x 19-1/2 x 1-3/4

Mann+Hummel 20x25x4 MERV 8 Pleated HVAC AC Furnace Air Filters. Box of 4. (Exact Size: 19.5 x 24.5 x 3.75 Inches)

Zephyr 20x24x3 VGF Merv 13 Pleated Air Cleaner Replacement Filter for Return Air Grilles. Box of 2

Glasfloss 20x30x2 MERV 10 (FPR 5-6) 2" Inch Pleated Air Filters. Box of 6. Actual Size: 19-5/8 x 29-5/8 x 1-3/4

Glasfloss 20x25x4 MERV 10 Pleated 4" Inch AC Furnace Air Filters. Box of 4. Actual Size: 19-1/2 x 24-1/2 x 3-3/4

Glasfloss 14x20x2 MERV 10 (FPR 5-6) 2" Inch Pleated Air Filters. Box of 6. Actual Size: 13-1/2 x 19-1/2 x 1-3/4

Filterbuy 20x24x6 Air Filter (3-Pack), Pleated MERV 11 No Header Rigid Cell Box Filters HVAC Replacement (Actual Size: 19.38 x 23.38 x 5.75)

Glasfloss 18x20x1 MERV 10 (FPR 5-6) Pleated Air Filters. Box of 6. Actual Size: 17-1/2 x 19-1/2 x 7/8

Filterbuy 20x24x12 Air Filter (1-Pack), Pleated MERV 14 No Header Rigid Cell Box Filters HVAC Replacement (Actual Size: 19.38 x 23.38 x 11.38)

Glasfloss 15x20x1 MERV 10 (FPR 5-6) Pleated Air Filters. Box of 6. Actual Size: 14-1/2 x 19-1/2 x 7/8

Glasfloss 12x20x1 MERV 10 (FPR 5-6) Pleated Air Filters. Box of 6. Actual Size: 11-1/2 x 19-1/2 x 7/8

Filterbuy 20x24x6 Air Filter (4-Pack), Pleated MERV 11 No Header Rigid Cell Box Filters HVAC Replacement (Actual Size: 19.38 x 23.38 x 5.75)

Filterbuy 20x24x12 Air Filter (3-Pack), Pleated MERV 14 No Header Rigid Cell Box Filters HVAC Replacement (Actual Size: 19.38 x 23.38 x 11.38)

Filterbuy 20x24x12 Air Filter (2-Pack), Pleated MERV 14 No Header Rigid Cell Box Filters HVAC Replacement (Actual Size: 19.38 x 23.38 x 11.38)

Filterbuy 20x24x12 Air Filter (4-Pack), Pleated MERV 11 No Header Rigid Cell Box Filters HVAC Replacement (Actual Size: 19.38 x 23.38 x 11.38)

Filterbuy 20x24x6 Air Filter (4-Pack), Pleated MERV 14 No Header Rigid Cell Box Filters HVAC Replacement (Actual Size: 19.38 x 23.38 x 5.75)

Filterbuy 20x24x12 Air Filter (2-Pack), Pleated MERV 11 No Header Rigid Cell Box Filters HVAC Replacement (Actual Size: 19.38 x 23.38 x 11.38)

Glasfloss 20x24x2 MERV 10 (FPR 5-6) 2" Inch Pleated Air Filters. Box of 6. Actual Size: 19-3/8 x 23-3/8 x 1-3/4

Filterbuy 20x24x6 Air Filter (3-Pack), Pleated MERV 14 No Header Rigid Cell Box Filters HVAC Replacement (Actual Size: 19.38 x 23.38 x 5.75)

Filterbuy 20x24x12 Air Filter (1-Pack), Pleated MERV 13 No Header Rigid Cell Box Filters HVAC Replacement (Actual Size: 19.38 x 23.38 x 11.38)

Glasfloss 20x22x1 MERV 10 (FPR 5-6) Pleated Air Filters Box of 6. Actual Size: 19-1/2 x 21-7/8 x 7/8

Filterbuy 20x24x12 Air Filter (3-Pack), Pleated MERV 13 No Header Rigid Cell Box Filters HVAC Replacement (Actual Size: 19.38 x 23.38 x 11.38)