Free Shipping

No minimums, no surprises — we ship every order for free! We’ll get your filters out the door fast so you can enjoy clean air and water without paying extra.
1 Year Purchase Guarantee

Shop with confidence! If you're not completely satisfied with your purchase, you have up to one year to return it for a refund or exchange. We stand behind every filter we sell.

Learn More
Shipped with Care from Indiana, USA

Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

Free Shipping

No minimums, no surprises — we ship every order for free! We’ll get your filters out the door fast so you can enjoy clean air and water without paying extra.
1 Year Purchase Guarantee

Shop with confidence! If you're not completely satisfied with your purchase, you have up to one year to return it for a refund or exchange. We stand behind every filter we sell.

Learn More
Shipped with Care from Indiana, USA

Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

Replacement for Lennox 17x26x4" (X6666)

Showing 1 - 2 of 2 Products

$189.95 / Filter

$237.44 Save 20%!

Ships Free!

$104.99 / Filter

$131.24 Save 20%!

Ships Free!

What Our Customers Have to Say

Samuel 1 day ago

GREAT PRODUCT AND PROOMPT SERVICE. THANK U.

BENITA L. 1 day ago

Filter is just what we wanted and needed and when we need replacements we will contact you.

Timothy P. 2 days ago

Excellent product and price. Really reduces the dust level in my house.

John 2 days ago

Perfect for our Furnace, does well and lasts for 6 months and more depending on how we have the furnace on.