Have an AprilAire cabinet?
Start with the cabinet label, then check the replacement media.
Built by Better Air Spokane
Find your filter. Feel sure it fits.
Start with what you know. We’ll help you check the fit and find your next step.
I know my filter size
Use the numbers printed on your current filter.
Choose a size →I know a model number
Search a filter, AprilAire cabinet, or upgrade kit.
Find my model →I’m not sure what I have
Compare the opening, cabinet, and filter style.
Identify my setup →Common filter sizes
Printed sizes are a starting point. Actual dimensions, depth, cabinet and rails determine fit.
Fit first. Filtration second.
Higher MERV means a different filtration choice, not an automatic upgrade for every system. Check airflow before moving to a higher rating.
Read the buying guide →Purchase links and dated prices are available on product and setup pages. Compare purchasing options. Always check current price and availability at the retailer.