Actual Dimensions: 20.75 x 24.25 x 4.38. Brand: Accumulair. 21x24x4.5 Rheem Protech 540020 style whole house filters, specifically constructed to substitute for the name brand Rheem Protech 540020 air filters. Completely constructed - no forming or combs required. MERV graded to ASHRAE specifications establishing operation equal to the name brand Rheem Protech 540020 air filters. Photo: The sample filter image displayed is not true to size and is shown for design purposes only. OEM names and Rheem Protech 540020 P/N included for filter substitution identification use.
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.
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