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
- Shipping is FREE to the contiguous United States.
- Our current lead times are 3-5 business days for stocked filters (standard 1"-5" thick sizes), up to 3 weeks for made-to-order filters (non-standard and 0.5" sizes).
Delivery normally takes another 1-3 days depending on location.
- 30-day 100% return policy.
Payment & Security
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