Our Accumulair brand 18x18x0.5 air filter is exactly designed to replace same sized 18x18x0.5 air filter style. Pleated electrostatically charged media traps airborne contaminants according to the MERV standard rating. Chemical free. Note: Sample filter picture displayed is not the actual dimensions and is included to show construction purposes only. Catalog and 18x18x0.5 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.