HDX 20 in. x 24 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12 HDX1P9-012024 - The Home Depot
Buy 20 x 24 x 6" Air Filter | AirFilters.com
24" x 24" Return Air Filter Grille * Filter Included * - HVAC Premium
Air-Care 20-in W x 24-in L x 1-in Washable MERV 8 Electrostatic Air Filter in the Air Filters department at Lowes.com
Air-Care 20 in. x 24 in. x 1 in. Permanent Washable Air Filter Merv 8 ES20241 - The Home Depot
EVERICA 20x24x1 Air Filter - Pack of 6, MERV 8 Basic Standard Efficiency Household Pleated AC Furnace 20 x 24 x 1 Air Filter, Durable 20 x 24 x 1 Air Filter, Easy to Install - Amazon.com
24" X 20" Return Air Filter Grille - Filter Included - Easy Plastic Tabs for Removable Face/Door - HVAC Vent Duct Cover - White [Outer Dimensions: 26 5/8"w X 22 5/8"h] - Amazon.com
24" X 20" Duct Opening | Filter Included HD Steel Return Air Filter Gr – AirGrilles
K&N 20-in W x 24-in L x 1-in Washable MERV 11 Pleated Air Filter in the Air Filters department at Lowes.com
PRO-SOURCE - Pleated Air Filter: 20 x 24 x 2″, MERV 8, 35% Efficiency, Wire-Backed Pleated - 06222244 - MSC Industrial Supply