RESERVEPro 20x20x5 GF #4531 Mac Twenty MERV 10/ 4556 NEW MERV 11 Part # . Package of 3
- Replacement MAC TWENTY Filters
- Actual Size 20 3/4 x 19 3/4 x 4 15/16
- 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