Actual size is 20 x 25.88 x 4.88. Accumulair brand, 20x26x5 Lennox X5428 replacement whole house air filters, exactly designed to substitute for the original manufacturer Lennox X5428 air filters. Completely constructed so no forming or combs needed. MERV rated to ASHRAE 52.2 test specifications establishing performance to the level of the name brand Lennox X5428 filter. Photo: Example filter pic shown is not the actual dimensions and is included to show configuration purposes only. Brand names and Lennox X5428 identifier are included for air filter style identification only.
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.