Filter Hut's Accumulair 25x25x4 air filter is exactly made to substitute for similarly sized 25x25x4 air filter specs. Pleated static charged filter material traps contaminants according to the ASHRAE MERV specification. Chemical free. Note: The example filter picture displayed is not to scale and is included to show design purposes. Current stock and 25x25x4 air filter variations are up to date as of 03/24/2020.
Shipping and Returns
- Shipping is FREE to the contiguous United States.
Due to shortages and demand the current lead time is up to 10 business days to process.
Orders take 1-3 business days to process.
(Custom & bag filters take 5-7 business days.)
Delivery normally takes another 1-3 days depending on location.
- 30-day 100% return policy.
Payment & Security
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