20x21x5 Lennox X8790 Air Filter

Quantity of Filters per Case: 2
Efficiency Rating: MERV 8
$ 85.90


Actual Dimensions: 20 x 20.63 x 4.38. Accumulair brand 20x21x5 Lennox X8790 replacement whole house air filters, specifically built to substitute for the original brand Lennox X8790 air filters. Fully built so no assembly or combs required. MERV classified to ASHRAE 52.2 test specs establishing particulate filtration equal to the original manufacturer Lennox X8790 air filters. Notice: Example air filter picture as shown is not true to size and is shown for design purposes only. Name brands and Lennox X8790 part numbers are shown for air filter substitution identification purposes only.

Shipping and Returns

Payment & Security

American Express Apple Pay Diners Club Discover Google Pay JCB Mastercard PayPal Shop Pay Venmo Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.