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You are here: Home > Furnace Filters > Shop Filters By Brand > Lennox > Shop Lennox Filters By Thickness > Lennox 4" Filters
We found 12 results matching your criteria.
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Lennox X8349 - PureAir PCO-12C MERV 10 Annual Maintenance Kit with Insert 17" x 26" x 4" Lennox X8348 - Healthy Climate PCO-20C MERV 10 MAINT KIT W/INSRT 21" x 26" x 4" Lennox X8347 - PureAir PCO-12C MERV 16 Maintenance Kit with Insert 17" x 26" x 4"
Our Price: $212.95 Includes Free Shipping!
Our Price: $242.95 Includes Free Shipping!
Our Price: $326.95 Includes Free Shipping!
Lennox X8349, Lennox X8349 Filters, Lennox X8349 Filter, Lennox X8348 Lennox X8347
X8349 - Lennox PureAir PCO-12C MERV 10 Maintenance Kit with Insert - Filter dimensions:  17" x 26" x 4". Lennox X8348 Healthy Climate PCO-20C MERV 10 MAINT KIT W/INSRT. Filter dimensions:  21" x 26" x 4" Lennox PureAir PCO-12C MERV 16 MAINTENANCE KIT WITH INSERT - X8347.  Filter dimensions:  17" x 26" x 4".
Lennox X8346 - PureAir PCO-12C MERV 16 Maintenance Kit without Insert 17" x 26" x 4" Lennox X8345 - PureAir PCO-20C MERV 16 Upgrade Kit with Insert 21" x 26" x 4" Lennox X8344 - PureAir PCO-20C MERV 16 Upgrade Kit without Insert - 21" x 26" x 4"
Our Price: $203.19 Includes Free Shipping!
Our Price: $343.15 Includes Free Shipping!
Our Price: $273.27 Includes Free Shipping!
Lennox X8346 Lennox X8345 Lennox X8344
Lennox PureAir PCO-12C MERV 16 MAINTENANCE KIT WITHOUT INSERT - X8346.  Filter dimensions: 17" x 26" x 4". Lennox PureAir PCO-20C MERV 16 UPGRADE KIT WITH INSERT 21" x 26" x 4"- X8345 Lennox PureAir PCO-20C MERV 16 UPGRADE KIT WITHOUT INSERT - X8344
Lennox X6669 - PureAir PCO-20C MERV 16 Replacement Filter 21" x 26" x 4" Lennox X1967 - Replacement Filter 20" x 24" x 1" Lennox X1204 - Replacement Filter 20" x 30" x 1"
Our Price: $99.95
Save $1.50 per Filter and Receive Free Shipping when you Buy 2 or More!!!
Our Price: $15.55 Includes Free Shipping.
Our Price: $15.55 Includes Free Shipping.
Lennox X6669 MERV 16 Filter
Lennox PureAir PCO-20C MERV 16 Replacement Filter 21" x 26" x 4" - X6669 Lennox Replacement Filter 20" x 24" x 1" - X1967 Lennox Replacement Filter 20" x 30" x 1" - X1204
Lennox X6664 - PureAir PCO-12C Replacement Filter 17" x 26" x 4" Lennox X6667 - PureAir PCO-20C MERV 10 Replacement Filter 21" x 26" x 4" Lennox X6666 - PureAir PCO-12C MERV 16 Replacement Filter 17" x 26" x 4"
Our Price: $28.08
Save $1.00 per Filter and Receive Free Shipping when you Buy 2 or More!!!
Our Price: $26.99
Save $1.00 per Filter and Receive Free Shipping when you Buy 2 or More!!!
Our Price: $99.95
Save $1.50 per Filter and Receive Free Shipping when you Buy 2 or More!!!
Lennox X6667, Lennox PureAir PCO Lennox X6666
Lennox PureAir PCO-12C Replacement Filter 17" x 26" x 4" - X6664 Lennox PureAir PCO-20C Replacement Filter 21" x 26" x 4" - X6667 Lennox PureAir PCO-12C MERV 16 Replacement Filter 17" x 26" x 4" - X6666
   
 
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