This Accumulair 21.25x21.25x1 air filter is exactly constructed to substitute for same sized 21.25x21.25x1 air filter specs. Pleated electrostatic charged filter media traps contaminants in the air according to the ASHRAE MERV specification. Chemical free material. Note: Sample filter image displayed is not the actual dimensions and is shown for style purposes. Catalog and 21.25x21.25x1 air filter statements are up to date as of 03/24/2020.
Shipping and Returns
- Shipping is FREE to the contiguous United States.
- Our current lead times are 3-5 business days for stocked filters (standard 1"-5" thick sizes), up to 3 weeks for made-to-order filters (non-standard and 0.5" sizes).
Delivery normally takes another 1-3 days depending on location.
- 30-day 100% return policy.
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