Actual dimensions are 16.63 x 26 x 4.13. Accumulair brand: 17x26x4 Lennox X6664 style whole house filters, exactly built to be an alternative to the name brand Lennox X6664 air filters. Completely constructed - no forming or combs needed. MERV classified to ASHRAE specifications assuring particle capture equal to the name brand Lennox X6664 air filter. Note: Example filter pic displayed is not to scale and is included to show construction purposes. OEM names and Lennox X6664 P/N are listed for air filter substitution purposes.
Shipping and Returns
- Shipping is FREE to the contiguous United States.
- Our current lead times are 3-5 days for stocked standard filters, up to 3 weeks for non-standard and 0.5" filters, and up to 8 weeks for bag filters.
Delivery normally takes another 1-3 days depending on location.
- 30-day 100% return policy.
Payment & Security
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