Our Accumulair 20x21x1 air filter is exactly engineered to be a replacement for same sized 20x21x1 air filter type. Pleated static charged media traps contaminants according to the ASHRAE MERV rating. Free of chemicals. Note: Sample filter picture shown is not the actual dimensions and is shown for style only. Catalog and 20x21x1 air filter variations 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.
Payment & Security
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