Honeywell FC40R1011 Return Grille Media Air Filter 20" x 25" x 4"
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 X8348 - Healthy Climate PCO-20C MERV 10 MAINT KIT W/INSRT 21" x 26" x 4"
Lennox X8349 - PureAir PCO-12C MERV 10 Annual Maintenance Kit with Insert 17" x 26" x 4"
Honeywell FC40R1011 - 20" x 25" x 3" Return Grille Pleated Air Filter, MERV 10
Honeywell FC40R1011 (2-Pack) - 20" x 25" x 3" Return Grille Pleated Air Filter, MERV 10
Lennox Y4593 - 1st Generation to 2nd Generation Conversion Kit: Healthy Climate PCO-20C MERV 10 MAINT KIT W/ INSRT 21" x 26" x 4"
Out of stock
Lennox Y4594 - 1st Generation to 2nd Generation Conversion Kit: Healthy Climate PCO-12C MERV 10 w/ Insert 17" x 26" x 4"
Out of stock
Honeywell FC40R1011 (5-Pack) - Return Grille Media Air Filter 20" x 25" x 3"
Out of stock