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Filtrete 16x25x4, AC Furnace Air Filter, MPR 1550 DP, Healthy Living Ultra Allergen Deep Pleat, 2-Pack (actual dimensions 15.88 x 24.56 x 4.31) - Amazon.com
Filtrete Allergen Reduction Filter for 4" Housings, 1500 MPR (2 PK) - Sam's Club
3M Filtrete 1550 Allergen Reduction Air Filters - 16x25x4
Filtrete? Allergen Reduction Filter for 4 in. Housings, 16 in. x 25 in. x 4 in. , 1 Pack | Meijer
Filtrete 16-in W x 25-in L x 4-in MERV 11 1000 MPR Allergen Defense Electrostatic Pleated Air Filter (2-Pack) in the Air Filters department at Lowes.com
Filtrete 16x25x4 Air Filter, MPR 1000, MERV 11, Allergen Defense 12-Month Deep Pleated 4-Inch Air Filters, 4 Filters - Yahoo Shopping