MERV 11 | FPR 8-9 | MPR 1200-1500 - Allergens

18x24x4 MERV 11 ( FPR 8-9 ) Pleated 4" Inch Air Filters for HVAC Systems by Glasfloss. 2 Pack. Exact Size: 17-1/2 x 23-1/2 x 3-3/4

18x24x4 MERV 11 ( FPR 8-9 ) Pleated 4" Inch Air Filters for HVAC Systems by Glasfloss. 4 Pack. Exact Size: 17-1/2 x 23-1/2 x 3-3/4

18x24x4 MERV 11 ( FPR 8-9 ) Pleated 4" Inch Air Filters for HVAC Systems by Glasfloss. Case of 6. Exact Size: 17-1/2 x 23-1/2 x 3-3/4

18x25x1 MERV 11 ( FPR 8-9 ) Pleated Air Filters for HVAC Systems by Glasfloss. 6 Pack

18x25x1 MERV 11 ( FPR 8-9 ) Pleated Air Filters for HVAC Systems by Glasfloss. Box of 4

18x25x1 MERV 11 ( FPR 8-9 ) Pleated Air Filters for HVAC Systems by Glasfloss. Case of 12

18x25x2 MERV 11 ( FPR 8-9 ) Pleated 2" Inch Air Filters for HVAC Systems by Glasfloss. 3 Pack

18x25x2 MERV 11 ( FPR 8-9 ) Pleated 2" Inch Air Filters for HVAC Systems by Glasfloss. 6 Pack

18x25x2 MERV 11 ( FPR 8-9 ) Pleated 2" Inch Air Filters for HVAC Systems by Glasfloss. Case of 12

20x20x1 MERV 11 ( FPR 8-9 ) Pleated Air Filters for HVAC Systems by Glasfloss. 6 Pack

20x20x1 MERV 11 ( FPR 8-9 ) Pleated Air Filters for HVAC Systems by Glasfloss. Box of 4

20x20x1 MERV 11 ( FPR 8-9 ) Pleated Air Filters for HVAC Systems by Glasfloss. Case of 12