Filtrete 20-in W x 25-in L x 4-in MERV 11 Pleated Air Filter (3-Pack) at Lowes.com
Assigned by Sterling Seal & Supply KP-16x25x4x2.AZ Furnace Air Filter, 16" x 25" x 4" Purolator Key Pleat Extended Surface Pleated Air Filter, Mechanical MERV 8: Amazon.com: Tools & Home Improvement
Filtrete 20-in W x 25-in L x 4-in MERV 11 Pleated Air Filter (3-Pack) at Lowes.com