Quick view Compare 20x20x4 MERV 10 ( FPR 6-7 ) Pleated 4" Inch Air Filters for HVAC Systems by Glasfloss. 2 Pack. Exact Size: 19-1/2 x 19-1/2 x 3-3/4 Was: Now: $30.99 Choose Options
Quick view Compare 20x20x4 MERV 10 ( FPR 6-7 ) Pleated 4" Inch Air Filters for HVAC Systems by Glasfloss. 4 Pack. Exact Size: 19-1/2 x 19-1/2 x 3-3/4 Was: Now: $47.99 Choose Options
Quick view Compare 20x20x4 MERV 10 ( FPR 6-7 ) Pleated 4" Inch Air Filters for HVAC Systems by Glasfloss. Case of 6. Exact Size: 19-1/2 x 19-1/2 x 3-3/4 Was: Now: $59.99 Choose Options
Quick view Compare 20x20x4 MERV 11 ( FPR 8-9 ) Pleated 4" Inch Air Filters for HVAC Systems by Glasfloss. 2 Pack. Exact Size: 19-1/2 x 19-1/2 x 3-3/4 Was: Now: $36.98 Choose Options
Quick view Compare 20x20x4 MERV 11 ( FPR 8-9 ) Pleated 4" Inch Air Filters for HVAC Systems by Glasfloss. 4 Pack. Exact Size: 19-1/2 x 19-1/2 x 3-3/4 Was: Now: $61.94 Choose Options
Quick view Compare 20x20x4 MERV 11 ( FPR 8-9 ) Pleated 4" Inch Air Filters for HVAC Systems by Glasfloss. Case of 6. Exact Size: 19-1/2 x 19-1/2 x 3-3/4 Was: Now: $79.98 Choose Options
Quick view Compare 20x20x4 MERV 13 ( FPR 10 ) Pleated 4" Inch Air Filters for HVAC Systems by Glasfloss. 2 Pack. Exact Size: 19-1/2 x 19-1/2 x 3-3/4 Was: Now: $47.99 Choose Options
Quick view Compare 20x20x4 MERV 13 ( FPR 10 ) Pleated 4" Inch Air Filters for HVAC Systems by Glasfloss. 4 Pack. Exact Size: 19-1/2 x 19-1/2 x 3-3/4 Was: Now: $91.99 Choose Options
Quick view Compare 20x20x4 MERV 13 ( FPR 10 ) Pleated 4" Inch Air Filters for HVAC Systems by Glasfloss. Case of 6. Exact Size: 19-1/2 x 19-1/2 x 3-3/4 Was: Now: $122.99 Choose Options
Quick view Compare 20x20x4 MERV 8 ( FPR 5-6 ) Pleated 4" Inch HVAC Filters for AC and Furnace. 2 Pack. Exact Size: 19-1/2 x 19-1/2 x 3-3/4 Was: Now: $29.88 Choose Options
Quick view Compare 20x20x4 MERV 8 ( FPR 5-6 ) Pleated 4" Inch HVAC Filters for AC and Furnace. 4 Pack. Exact Size: 19-1/2 x 19-1/2 x 3-3/4 Was: Now: $45.86 Choose Options
Quick view Compare 20x20x4 MERV 8 ( FPR 5-6 ) Pleated 4" Inch HVAC Filters for AC and Furnace. Case of 6. Exact Size: 19-1/2 x 19-1/2 x 3-3/4 Was: Now: $54.84 Choose Options
