Actual dimensions are 20.75 x 20.25 x 5.25. Brand: Accumulair. 20x20x5 Nordyne 918377 substitute whole house air filters, exactly constructed to be an alternative to the name brand Nordyne 918377 air filters. Fully constructed - no forming or combs needed. MERV graded to ASHRAE 52.2 test ratings establishing filtration equal to the OEM Nordyne 918377 air filters. Photo: Example filter picture as displayed is not the actual dimensions and is displayed for design purposes only. Company names and Nordyne 918377 identifier are shown for filter style identification.
Shipping and Returns
- Shipping is FREE to the contiguous United States.
- Our current lead times are 3-5 days for stocked standard filters, up to 3 weeks for non-standard and 0.5" filters, and up to 8 weeks for bag filters.
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.