Our Accumulair brand 21.25x21.25x0.5 air filter is specifically engineered to substitute for similarly sized 21.25x21.25x0.5 air filter style. Pleated static charged filter media traps contaminants in the air relative to its MERV specification. Material is free of chemicals. Note: The example filter image displayed is not to scale and is displayed for style purposes. Catalog and 21.25x21.25x0.5 air filter variations last updated on 03/24/2020.
Shipping and Returns
- Our current lead times are 4-6 business days for stocked filters (standard 1"-5" thick sizes), and up to 8-12 business days for made-to-order filters (non-standard and 0.5" sizes). Delivery normally takes another 1-3 days depending on location.
- Shipping is FREE to the contiguous United States.
- 30-day 100% return policy.
Payment & Security
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