Feature

●Please Measure Carefully ! Due to the large package size returns of this product result in high return shipping costs.
●True Exact Dimensions are 19 5/8"x 24 3/16"x 4 15/16"- to replace old Reservepro #4501 and other brands with the same dimensions.
●Pack of 2 Filters- Higher Efficiency Merv 11 models replaces older Merv 10 Filters.


Description

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.