This Accumulair brand 20x36x4 air filter is specifically engineered to replace same sized 20x36x4 air filter style. Pleated electrostatically charged media captures airborne particles according to the MERV rating. Material is free of chemicals. Note: Sample filter picture as shown is not to scale and is shown for construction purposes only. Catalog and 20x36x4 air filter specs 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.
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