Actual size is 16.63 x 26 x 4.13. Accumulair brand, 17x26x4 Lennox X7574 style whole house air filters, specifically designed to substitute for the OEM Lennox X7574 filters. Completely built - no assembly or combs needed. MERV graded to ASHRAE 52.2 test classifications ensuring particle filtration equal to the original manufacturer Lennox X7574 air filter. Photo: Sample air filter pic as shown is not the actual dimensions and is displayed for style only. Trade names and Lennox X7574 identifier are listed for filter replacement identification purposes only.
Shipping and Returns
- Our current lead times are 10-14 business days for standard filters (1"-6" thick sizes), and up to 14-21 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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