Filter Hut's Accumulair 21x23x0.5 air filter is solely made to replace similarly sized 21x23x0.5 air filter type. Pleated electrostatic charged media captures contaminants in the air relative to its MERV standard specification. Free of chemicals. Note: The sample filter picture displayed is not the actual dimensions and is included to show design only. Database and 21x23x0.5 air filter variations last verified on 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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