Our Accumulair 12x20x4 air filter is exactly built to substitute for same sized 12x20x4 air filter style. Pleated electrostatic charged media traps contaminants in the air according to the ASHRAE MERV rating. Free of chemicals. Note: The sample filter picture displayed is not to scale and is shown for design purposes. Catalog and 12x20x4 air filter statements last updated on 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
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.