Our Accumulair brand 19.5x21x4 air filter is exactly built to replace same sized 19.5x21x4 air filter specification. Pleated electrostatic charged media traps airborne contaminants relative to its MERV rating. Chemical free material. Notice: The sample filter picture as shown is not to scale and is shown for style purposes only. Database and 19.5x21x4 air filter statements are up to date 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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