Generalaire 20x20x5 Part 4531 / 4556 MERV 10. Actual Size 20 3/4" x 19 3/4" x 4 15/16." Case of 3 Generic
- Exact Size Replacement for ReservePro 4531, 20x20x5 Pleated Filters
- Actual Size 20 3/4" x 19 3/4" x 4 15/16"
- MERV 10 Rated
- Also fits: S1 # S1-FM10202005, Source 1 # S1-MAC202005, Trion # 255649-103, Skuttle #448-3, Skuttle DB-0020-020, Air Bear Supreme 20x20, Generalaire MAC TWENTY, Generalaire #4531
- Made in Canada by FurnaceFilters.ca
- Case of 3