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GeneralAire ReservePro 4551 MERV 11 OEM 20X25 filters exactly fits part # 4501. GeneralAire part #4551. Nominal Size: 20" x 25" X 5" Actual Size: 19 5/8" x 24 3/16" x 4 15/16". Efficiency Rating: MERV 11 High-efficiency MERV 11 Media Filter # 4551. Fits GeneralAire GF‐2025, GF‐GAFB2832, GF‐GAFB2843, Mega‐Mac MAC2000, MAC‐L; Lennox BMAC‐20C, MAC‐10, MF1‐20; Source1 S1‐MAC10202505; Totaline P101‐MF20; Trion Air Bear 2000; York S1‐MAC10202505. High-efficiency MERV 11 Media Filter with more surface area for a longer filter life.
Vent Systems 8'' x 4'' Inch Air Vent Cover - Anthracite - Metal Air Return Grill with Built in Pest Guard Screen HVAC Vent Cover for Home Improvement Vent Duct Cover (7.9 x 3.9 Inches)
KWD 6.500
Filterbuy 24x36x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 23.50 x 35.50 x 0.75 Inches)
KWD 31
Filterbuy 20x20x2 Air Filter MERV 11 Allergen Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 19.50 x 1.75 Inches)
KWD 21
Filterbuy 13x21.5x1 Air Filter MERV 8 Dust Defense (1-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 12.88 x 21.50 x 0.75 Inches)
KWD 6.500
