Filter Hut's Accumulair brand 18.25x22x4 air filter is specifically made to substitute for similarly sized 18.25x22x4 air filter style. Pleated static charged filter media traps airborne particles relative to its MERV rating. Material is free of chemicals. Note: Sample filter picture displayed is not to scale and is displayed for style purposes. Database and 18.25x22x4 air filter statements current 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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