16x25x4 MERV 13 Pleated AC Furnace Air Filters. Case of 6

Glasfloss ZL 16x25x4 MERV 11 ( FPR 8-9 ) Pleated AC Furnace Air Filters. Case of 6. Exact Size: 15-1/2 x 23-1/2 x 3-3/4