21-1/2 x 23-5/16 x 1 MERV 10 ( FPR 6-7 ) AC and Furnace Pleated Air Filters. Case of 12

21-1/2 x 23-5/16 x 1 MERV 10 ( FPR 6-7 ) AC and Furnace Pleated Air Filters. Quantity 3

21-1/2 x 23-5/16 x 1 MERV 10 ( FPR 6-7 ) AC and Furnace Pleated Air Filters. Quantity 6

21-1/2 x 23-5/16 x 1 MERV 11 Pleated AC Furnace Air Filters. Case of 12

21-1/2 x 23-5/16 x 1 MERV 8 ( FPR 5-6 ) AC and Furnace Pleated Air Filters. Case of 12

21-1/2 x 23-5/16 x 1 MERV 8 ( FPR 5-6 ) AC and Furnace Pleated Air Filters. Quantity 3

21-1/2 x 23-5/16 x 1 MERV 8 ( FPR 5-6 ) AC and Furnace Pleated Air Filters. Quantity 6