This Filter Hut Accumulair brand 21.5x24x4 air filter is exactly constructed to replace similarly sized 21.5x24x4 air filter type. Pleated static charged filter material traps airborne substances according to the MERV standard rating. Chemical free material. Notice: The example filter picture displayed is not to scale and is included to show construction purposes only. Catalog and 21.5x24x4 air filter specs current 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.