AprilAire cabinet media
In Better Air's field experience, AprilAire cabinet media is the top recommendation when the customer has, or is upgrading to, the correct cabinet. Verify cabinet and media model numbers before ordering.
Buying guide
Pick the filter path first
The right purchase depends on the filter slot or cabinet, not just the nominal size printed on the filter.
1. Nominal sizeUse the printed size as the starting point.
2. Type/depthConfirm cabinet media, 4-inch, or 1-inch before shopping.
3. Filtration levelChoose MERV 11/12, 13/14, or 16 only where compatible.
Name-brand 4-inch
4-inch filters usually have more media surface area than 1-inch filters, which can often mean better airflow and longer service life when correctly fitted.
Name-brand 1-inch
1-inch filters are common and simple. Choose a quality name-brand pleated filter and expect to check or change it more often.
General replacement guidance
1-inch filters: check/change about monthly.
4-inch filters: check/change about every 3 months.
AprilAire MERV 11/13: check around 6 months; many systems can go up to 12 months.
AprilAire MERV 16: about 6 months.
These are general starting points, not guarantees. Dust, pets, fan runtime, construction, smoke, and system airflow can change the right schedule.
Airflow caution
Higher MERV is not automatically better if the system cannot handle the airflow resistance. If airflow is already weak, do not jump straight to the highest MERV without confirming the system can handle it.