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Lennox furnace filters and air filters are needed to keep a good efficiency of your cooling and heating system.

Lennox Air and Furnace Filters full product list:


FiltersFast FF20255X6673M11 Replacement for Lennox X6673 MERV11, 20x25x5 - 2-Pack
In Stock!
Ships in 1 to 2 business days.

Retail: $70.99

Our Price: $54.95

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FiltersFast FF16255X6670M11 Replacement for Lennox X6670 MERV11, 16x25x5 - 2-Pack
In Stock!
Ships in 1 to 2 business days.

Retail: $70.99

Our Price: $46.95

Save 34%!

Lennox Y6604 Healthy Climate PureAir PCO3-20-16 MERV 16 20x26x5
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within the continental U.S.

In Stock!
Ships in 3 to 4 business days.

Retail: $180.99

Our Price: $130.99

Save 28%!

FiltersFast FF20255X6673M13 Replacement for Lennox X6673 MERV13, 20x25x5 - 2-Pack
In Stock!
Ships in 1 to 2 business days.

Retail: $90.99

Our Price: $69.95

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FiltersFast FF16255X6670M13 Replacement for Lennox X6670 MERV13, 16x25x5 - 2-Pack
In Stock!
Ships in 1 to 2 business days.

Retail: $90.99

Our Price: $56.95

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FiltersFast FF20255X6673M8 Replacement for Lennox X6673 MERV8, 20x25x5 - 2-Pack
In Stock!
Ships in 1 to 2 business days.

Retail: $59.99

Our Price: $48.95

Save 18%!

Lennox X0445 MERV 10 PMAC-20C Pleated Furnace Filter Media
In Stock!
Ships in 2 to 3 business days.

Retail: $70.95

As Low As: $45.95

Save 35%!

Lennox X8927 Healthy Climate PureAir 4 Lamp Clips for PCO-20-28
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Ships in 2 to 3 business days.

Retail: $40.99

Our Price: $23.95

Save 42%!

Lennox X8791 Healthy Climate PureAir Insert - PCO20-28
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within the continental U.S.

In Stock!
Ships in 2 to 3 business days.

Retail: $160.99

As Low As: $110.95

Save 31%!

Lennox 75X66 Genuine Metal Mesh Insert Fits PureAir Model PCO-2OC
FREE SHIPPING!

within the continental U.S.

In Stock!
Ships in 5 to 6 business days.

Retail: $200.99

As Low As: $90.95

Save 55%!

Lennox X0444 MERV 10 Pleated Furnace Filter Media PMAC-12C
In Stock!
Ships in 3 to 4 business days.

Retail: $70.99

Our Price: $50.95

Save 28%!

Lennox X1152 MERV 11 Pleated Media Furnace Filter MF1-20
In Stock!
Ships in 2 to 3 business days.

Retail: $50.99

As Low As: $39.95

Save 22%!

Lennox X5424 PMAC-20C MERV 16 25x20x6 Furnace Filter Media
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within the continental U.S.

In Stock!
Ships in 2 to 3 business days.

Retail: $143.99

Our Price: $120.95

Save 16%!

Lennox X7930 Furnace Filter Cabinet
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within the continental U.S.

In Stock!
Ships in 1 to 2 business days.

Retail: $115.95

Our Price: $100.95

Save 13%!

Lennox X8793 Healthy Climate PureAir Insert - PCO14-23
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within the continental U.S.

In Stock!
Ships in 4 to 5 business days.

Retail: $200.99

Our Price: $90.95

Save 55%!

Lennox LB-71455 Media Filter, 24in x 20ft Roll - 30023
In Stock!
Ships in 3 to 4 business days.

Retail: $100.99

Our Price: $65.99

Save 35%!

Lennox 75X73 Metal Mesh Filter Catalyst Insert Assembly
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within the continental U.S.

In Stock!
Ships in 3 to 4 business days.

Retail: $190.99

Our Price: $85.99

Save 55%!

FiltersFast FF16255X6670M8 Replacement for Lennox X6670 MERV8, 16x25x5 - 2-Pack
In Stock!
Ships in 1 to 2 business days.

Retail: $50.99

Our Price: $45.95

Save 10%!

Lennox X8792 Metal Mesh Insert for Healthy Climate PCO16-28
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within the continental U.S.

In Stock!
Ships in 3 to 4 business days.

Retail: $160.99

Our Price: $100.95

Save 37%!

Lennox LB-71457 Media Filter 28-in x 20-ft - 30340
In Stock!
Ships in 2 to 3 business days.

Retail: $100.99

Our Price: $65.99

Save 35%!

Lennox 92X09 Healthy Climate 93014-21 HEPA 40-60 Carbon Filter
In Stock!
Ships in 2 to 3 business days.

Retail: $100.99

Our Price: $55.99

Save 45%!

Lennox X0581 MERV 10 Pleated Furnace Filter Media
In Stock!
Ships in 3 to 4 business days.

Retail: $55.99

Our Price: $41.95

Save 25%!

Lennox 92X17 HEPA Filter Cartridge Replacement
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within the continental U.S.

In Stock!
Ships in 5 to 6 business days.

Retail: $240.99

Our Price: $185.99

Save 23%!

Lennox X5425 MERV 16 Pleated Furnace Filter Media
FREE SHIPPING!

within the continental U.S.

In Stock!
Ships in 3 to 4 business days.

Retail: $143.99

Our Price: $120.95

Save 16%!

Lennox 72H02 Whole House System Air Filter
In Stock!
Ships in 4 to 5 business days.

Retail: $30.99

Our Price: $20.99

Save 32%!

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