Our Accumulair 11.25x11.25x4 air filter is solely built to be compatible with same sized 11.25x11.25x4 air filter specification. Pleated static charged filter material traps airborne substances relative to its MERV standard rating. Material is free of chemicals. Note: Example filter picture as shown is not the actual dimensions and is displayed for construction purposes. Catalog and 11.25x11.25x4 air filter statements are up to date as of 03/24/2020.
Shipping and Returns
- Our current lead times are 10-14 business days for standard filters (1"-6" thick sizes), and up to 14-21 business days for made-to-order filters (non-standard and 0.5" sizes). Delivery normally takes another 1-3 days depending on location.
- Shipping is FREE to the contiguous United States.
- 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.