Actual Dimensions: 20.75 x 20.25 x 5.25. Accumulair brand, 20x20x5 Nordyne N-MU2020 substitute whole house filters, specifically engineered to substitute for the OEM Nordyne N-MU2020 filters. Fully box-formed - no assembly or combs needed. MERV classified to ASHRAE ratings ensuring function to the level of the original manufacturer Nordyne N-MU2020 filters. Notice: Sample air filter image as shown is not the actual dimensions and is included to show construction purposes only. Company names and Nordyne N-MU2020 part numbers shown for air filter replacement purposes.
Shipping and Returns
- Shipping is FREE to the contiguous United States.
- Our current lead times are 3-5 business days for stocked filters (standard 1"-5" thick sizes), up to 3 weeks for made-to-order filters (non-standard and 0.5" sizes).
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.