Actual Size: 20.75 x 24.25 x 4.38. Accumulair brand: 21x24x4.5 Rheem PD540020 replacement whole house air filters, exactly engineered to substitute for the original manufacturer Rheem PD540020 air filters. Completely box-formed - no forming or combs needed. MERV classified to ASHRAE 52.2 test standards ensuring operation to the level of the OEM Rheem PD540020 air filter. Photo: The sample filter pic shown is not to scale and is shown for style purposes only. OEM names and Rheem PD540020 part numbers are used for filter substitution purposes only.
Shipping and Returns
- Shipping is FREE to the contiguous United States.
Due to shortages and demand the current lead time is up to 10 business days to process.
Orders take 1-3 business days to process.
(Custom & bag filters take 5-7 business days.)
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.