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Generalaire 4531 Furnace Filter 20x20x5 MERV 10 Upgraded to MERV 11 GFI 4556 for MAC Twenty Package of 3.

Generalaire 4531 Furnace Filter 20x20x5 MERV 10 Upgraded to MERV 11 GFI 4556 for MAC Twenty Package of 3.

Regular price $95.00
  • Generalaire Part # GFI 4531
  • 20 x 20 x 5 Media Pleated Filter
  • Replacement MAC Twenty Filters
  • 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
  • Actual Size 20 3/4" x 19 3/4" x 4 15/16"
  • MERV 10 Rated
  • Made by ReservePro Parts for Generalaire
  • Package of 3
  • Free Shipping in Ontario & Quebec*
  • Pick Up in Store $80.00