Actual size is 17.25 x 20.75 x 4.38. Brand: Accumulair. 17.5x21x4.5 Ruud PD540016 substitute whole house filters, specifically engineered to replace the original brand Ruud PD540016 filters. Completely built so no assembly or combs needed. MERV graded to ASHRAE 52.2 test ratings establishing particulate capture as good or better than the original manufacturer Ruud PD540016 air filters. Notice: Sample air filter picture displayed is not true to size and is shown for style purposes. Company names and Ruud PD540016 P/N are shown for air filter substitution identification only.
Shipping and Returns
- Our current lead times are 6-8 business days for standard filters (1"-6" thick sizes), and up to 10-14 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
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