Filter Hut's Accumulair 18x20x0.5 air filter is specifically constructed to be compatible with same sized 18x20x0.5 air filter specs. Pleated static charged filter media captures airborne contaminants according to the MERV specification. Chemical free material. Note: The sample filter image displayed is not to scale and is displayed for design purposes only. Database and 18x20x0.5 air filter specs current 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
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.