20 in. x 25 in. x 4 in. AprilAire/Space-Guard Replacement Pleated Air Filter FPR 9, MERV 11

Indoor air quality is commonly affected by particles such as dust, pet dander, and viruses. HDX is dedicated to providing a clean and comfortable indoor environment for everyone. We have a complete array of high-quality air cleaning filters which will ensure that your indoor air quality will be the cleanest air that you and your family can breathe.”,”highlights”:[“Helps protect against smoke, bacteria, virus carriers and more”,”Single replacement filter for AprilAire and lasts up to 1 year”,”MERV 13, fits AprilAire and SG 1210, 3210, 4200, 2210″