Actual dimensions are 19.88 x 24.88 x 4.38. Accumulair brand, 20x25x5 Lennox X7751 substitute whole house air filters, exactly built to replace original manufacturer Lennox X7751 filters. Fully box-formed with no assembly or combs needed. MERV classified to ASHRAE standards assuring particle capture equal to the name brand Lennox X7751 filter. Note: Example air filter image shown is not the actual dimensions and is there to show construction purposes only. Trade names and Lennox X7751 identifier displayed for filter replacement identification use.
Shipping and Returns
- Our current lead times are 4-6 business days for stocked filters (standard 1"-5" thick sizes), and up to 8-12 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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