4556 Generalaire Genuine Mac Twenty, Replacement for 4531 MERV 10 Upgraded to MERV 11 Part No. 4556. Package of 3
- Replacement MAC TWENTY Filters
- Actual/Exact Size 20 3/4" x 19 3/4" x 4 15/16"
- MERV 11 Rated
- Made by ReservePro Parts for Generalaire.
- Also for: 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
- Package of 3
- Pick Up in Store $100.00