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
- 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.