Replacement for Lennox 17x26x4" (X6666)

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What Our Customers Have to Say

rod galstad 1 day ago
5
I have always had the exact product I have requested. Prompt delivery. Never any type of a problem. I always Highly recommend "Discount Filters".
cliff hall 1 day ago
5
fits good...
Michael Shaw 1 day ago
5
Our HVAC has a peculiar fit for air filters. This one is an exact fit and works great. We change it every six months when the tech comes to inspect the system. He says it's doing a good job. Works for us.
larry collins 1 day ago
5
Have used for several years!