Filter Hut's Accumulair brand 20x22x4 air filter is solely constructed to substitute for same sized 20x22x4 air filter specs. Pleated electrostatic charged filter material captures contaminants in the air relative to its MERV standard rating. Material is free of chemicals. Note: Sample filter picture shown is not to scale and is included to show design only. Database and 20x22x4 air filter specs last verified on 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
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.