Actual Size: 20.75 x 20.75 x 4.38. Accumulair brand 21x21x4.5 Rheem RXHF-E21AM10 style whole house filters, exactly constructed to be an alternative to the original manufacturer Rheem RXHF-E21AM10 filters. Completely built with no forming or combs needed. MERV rated to ASHRAE classifications ensuring particle filtration to the level of the original manufacturer Rheem RXHF-E21AM10 filter. Note: The example filter picture as displayed is not the actual dimensions and is shown for construction purposes only. Company names and Rheem RXHF-E21AM10 P/N shown for filter replacement purposes only.
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.