Our Accumulair 16x21x0.5 air filter is solely engineered to be a replacement for same sized 16x21x0.5 air filter type. Pleated electrostatic charged filter media traps airborne particles according to the MERV rating. Free of chemicals. Note: Example filter image shown is not the actual dimensions and is displayed for construction purposes only. Current stock and 16x21x0.5 air filter specs are up to date as of 03/24/2020.
Shipping and Returns
- Shipping is FREE to the contiguous United States.
- 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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