Actual Dimensions: 20.75 x 20.75 x 4.38. Accumulair brand 21x21x4.5 Rheem PD540012 replacement whole house filters, specifically engineered to be an alternative to the original manufacturer Rheem PD540012 filters. Fully assembled so no assembly or combs needed. MERV rated to ASHRAE ratings ensuring particle filtration equal to the name brand Rheem PD540012 filters. Note: The sample filter picture shown is not true to size and is there to show style only. Brand names and Rheem PD540012 identifier are listed for air filter substitution identification purposes.
Shipping and Returns
- 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.