Filtrete 16x25x4 Air Filter, MPR 1000, MERV 11, Allergen Defense 12-Month, 4-Inch Air Filters, 4 Filters (15.88 in x 24.56 in x 4.31 in) - Amazon.com
Filtrete 16-in W x 25-in L x 4-in MERV 12 1550 MPR Slim Allergen, Bacteria and Virus Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com
Filtrete™ Ultra Allergen Reduction Deep Pleat Furnace AC Filter 1550 MPR, 1 pk / 16x25x4 in - Baker's
Filtrete 16x25x4 Air Filter, MPR 1000, MERV 11, Allergen Defense 12-Month Deep Pleated 4-Inch Air Filters, 4 Filters - Yahoo Shopping