Home > Air Filters > Lennox Air Filters
Choose a sub category:
Box Filters Expandable Filters HEPA & VOC Filters
Maintenance Kits

Lennox Filter

If you have a Lennox filtration system and are searching for high-quality, low-cost furnace filters, AC filters or air cleaner filters, browse our selection today. In addition to filters designed for Lennox, you’ll also find a variety of products intended to accommodate other major filter brands, including Honeywell, and Aprilaire.

Depending on the age and quality of your home system, these high-quality furnace filters, air filters and cleaner filters will provide you with proper filtration for six months or more. Lennox filters are designed to trap small particles known to cause irritation and reduce air quality and come in a variety of styles and sizes.

Our Lennox heating and AC filters come to you at low prices and with fast shipping. We offer free shipping on select items. Improve the quality of your home’s air and keep your heater, AC or air cleaner performing with optimal efficiency for years to come. If you're not sure which Lennox filter is right for you, contact us today.

Sort By:
Page of 3
Lennox x8795 UV Lamp for PureAir Systems Lennox x0582 MERV 11 Filter Lennox x0581 MERV 11 Filter
Lennox UV Lamp
Our Price: $49.00
Lennox UV bulb x8794 PureAir Systems
Contains 1 UV Lamp
Made for your PureAir System
55 watt
Replace Yearly

Lennox Healthy Climate
x0582 Box Filter
Nominal Size: 16" x 20" x 5"
Exact Size: 16" x 19.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Replacement For: Honeywell FC100A1003 & FC200E1003
Lennox Healthy Climate
x0581 Box Filter
Nominal Size: 16" x 25" x 3"
Exact Size: 15.875" x 24.25" x 3"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Replacement For: Trion 255649-101
Lennox x0583 MERV 11 Filter Lennox x6670 2-Pack Special Lennox 16x25x5 x6670 5-Pack Special
Lennox Healthy Climate
x0583 Box Filter
Nominal Size: 16" x 25" x 5"
Exact Size: 16" x 24.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 monthsReplacement For: Honeywell FC100A-1029 & FC200E-1029
Lennox Healthy Climate
x6670 2-Pack Special
Nominal Size: 16" x 25" x 5"
Exact Size: 15.75" x 24.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Quantity in Case: 2
Lennox Healthy Climate
x6670 5-Pack Special
Nominal Size: 16" x 25" x 5"
Exact Size: 15.75" x 24.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Quantity in Case: 5
Lennox x6670 MERV 11 Filter Lennox x6672 2-Pack Special Lennox x6672 MERV 16 Filter
Lennox 16x25x5 x6670 Box Filter
Our Price: $44.00

(12)
Lennox Healthy Climate
x6670 Box Filter
Nominal Size: 16" x 25" x 5"
Exact Size: 15.75" x 24.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Lennox Healthy Climate
x6672 2-Pack Special
Nominal Size: 16" x 25" x 5"
Exact Size: 15.75" x 24.75" x 4.375"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
Allergen Grade: Premium
Quantity in Case: 2


Lennox Healthy Climate
x6672 Box Filter w/ Carbon
Nominal Size: 16" x 25" x 5"
Exact Size: 15.75" x 24.75" x 4.375"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
Allergen Grade: Premium
Lennox x0584 MERV 11 Filter Lennox 17"x26"x4" x6664 MERV 11 Box Filter Lennox 17"x26"x4" x6666 MERV 16 Box Filter
Lennox Healthy Climate
x0584 Box Filter
Nominal Size: 16" x 26" x 5"
Exact Size: 16.375" x 26" x 5.156"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Lennox Healthy Climate
x6664 Box Filter
Nominal Size: 17" x 26" x 4"
Exact Size: 16.625" x 26.75" x 4"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Lennox Healthy Climate
x6666 Box Filter
Nominal Size: 17" x 26" x 4"
Exact Size: 16.625" x 26.75" x 4"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
Lennox x0585 2-Pack Special Lennox x0585 MERV 11 Filter Lennox x7935 2-Pack Special
Lennox Healthy Climate
x0585 2-Pack Special
Nominal Size: 20" x 20" x 5"
Exact Size: 20" x 19.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Replacement For: Honeywell FC100A1011 & FC200E1011
Quantity in Case: 2


Lennox Healthy Climate
x0585 Box Filter
Nominal Size: 20" x 20" x 5"
Exact Size: 20" x 19.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Replacement For: Honeywell FC100A1011 & FC200E1011
Lennox Healthy Climate
x7935 2-Pack Special
Nominal Size: 20" x 20" x 5"
Exact Size: 20" x 19.75" x 4.375"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
Allergen Grade: Premium
Quantity in Case: 2


Lennox x7935 MERV 16 Filter Lennox x0586 MERV 11 Filter Lennox 20"x25"x5" x1152 MERV 11 Box Filter
Lennox 20x25x5 x0586 Box Filter
Our Price: $50.00

(2)
Lennox 20x25x5 x1152 Box Filter
Our Price: $25.00

(4)
Lennox Healthy Climate
x7935 Box Filter w/ Carbon
Nominal Size: 20" x 20" x 5"
Exact Size: 20" x 19.75" x 4.375"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
Allergen Grade: Premium
Lennox Healthy Climate
x0586 Box Filter
Nominal Size: 20" x 25" x 5"
Exact Size: 20" x 24.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Replacement For: FC100A-1037 & FC200E-1037
Lennox Healthy Climate
x1152 Air Bear Filter
Nominal Size: 20" x 25" x 5"
Exact Size: 19.75" x 24.25" x 5"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Replacement For: 255649-102 & 229990-102
Lennox x6673 2-Pack Special Lennox x6673 5-Pack Special Lennox x6673 MERV 11 Filter
Lennox 20x25x5 x6673 Box Filter
Our Price: $45.00

(8)
Lennox Healthy Climate
x6673 2-Pack Special
Nominal Size: 20" x 25" x 5"
Exact Size: 19.75" x 24.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Quantity in Case: 2


Lennox Healthy Climate
x6673 5-Pack Special
Nominal Size: 20" x 25" x 5"
Exact Size: 19.75" x 24.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Quantity in Case: 5
Lennox Healthy Climate
x6673 Box Filter
Nominal Size: 20" x 25" x 5"
Exact Size: 19.75" x 24.75" x 4.375"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Lennox x6675 2-Pack Special Lennox x6675 MERV 16 Filter Lennox x0587 MERV 11 Filter
Lennox 20x26x5 x0587 Box Filter
Our Price: $39.00

(3)
Lennox Healthy Climate
x6675 Box 2-Pack Special
Nominal Size: 20" x 25" x 5"
Exact Size: 19.75" x 24.75" x 4.375"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
Allergen Grade: Premium
Quantity in Case: 2


Lennox Healthy Climate
x6675 Box Filter w/ Carbon
Nominal Size: 20" x 25" x 5"
Exact Size: 19.75" x 24.75" x 4.375"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
Allergen Grade: Premium
Lennox Healthy Climate
x0587 Box Filter
Nominal Size: 20" x 26" x 5"
Exact Size: 20.438" x 26" x 5.156"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Lennox 21"x26"x4" x6667 MERV 11 Box Filter Lennox 21"x26"x4" x6667 MERV 11 Box Filter Lennox 21"x26"x4" x6669 MERV 16 Box Filter
Lennox 21x26x4 x6667 Box Filter
Our Price: $40.00

(1)
Lennox Healthy Climate
x6667 Box Filter
Nominal Size: 21" x 26" x 4"
Exact Size: 21.25" x 26" x 4"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Lennox Healthy Climate
x6667 Box Filter
Nominal Size: 21" x 26" x 4"
Exact Size: 21.25" x 26" x 4"
Filter Rating: MERV 11
Expected Duration: 6 to 12 months
Lennox Healthy Climate
x6669 Box Filter
Nominal Size: 21" x 26" x 4"
Exact Size: 21.25" x 26" x 4"
Filter Rating: MERV 16
Expected Duration: 6 to 12 months
Lennox 69H85 Pre-Filter Lennox 72H02 Pre-Filter Lennox 72H09 Pre-Filter
Lennox 69H85 Washable Prefilter
Our Price: $30.00

(2)
Lennox 69H85 Pre-Filter
Washable
OEM
16 x 13 x 1/4
Fits Model EAC12-14
Lennox 72H02 Pre-Filter
Washable
OEM
Fits Model EAC12-20, EAC2000,EAC-2000, HC-EAC2000
Lennox 72H09 Pre-Filter
Charcoal
OEM
Fits Model EAC-20