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Lennox Filter
Lennox Air Filter - Furnace Filter 17x26x4 (16 1/2x26x4 1/8) MERV 8, 75X74 - X6664 - X6666
ONLY: $28.20 each - BIG Quantity Discounts, FREE SHIPPING, Lowest Price Guanrantee

Lennox Filter - Air Filter, Furnace For Models: 75X74 - X6664 - X6666

Fits Lennox model numbers PCO-12C and HCFPCO12-10

Nominal size 17x26x4
Actual size 16 1/2" x 26" x 4 1/8"
Lennox Air Filter - Furnace Filter 17x26x4 (16 1/2x26x4 1/8) MERV 11, 75X74 - X6664 - X6666
ONLY: $29.20 each - BIG Quantity Discounts, FREE SHIPPING, Lowest Price Guanrantee

Lennox Filter - Air Filter, Furnace For Models: 75X74 - X6664 - X6666

Fits Lennox model numbers PCO-12C and HCFPCO12-10

Nominal size 17x26x4
Actual size 16 1/2" x 26" x 4 1/8"
Lennox Filter
Lennox Air Filter - Furnace Filter 17x26x4 (16 1/2x26x4 1/8) MERV 13, 75X74 - X6664 - X6666
ONLY: $33.20 each - BIG Quantity Discounts, FREE SHIPPING, Lowest Price Guanrantee

Lennox Filter - Air Filter, Furnace For Models: 75X74 - X6664 - X6666

Fits Lennox model numbers PCO-12C and HCFPCO12-10

Nominal size 17x26x4
Actual size 16 1/2" x 26" x 4 1/8"
Lennox Filter
Lennox Air Filter - Furnace Filter 17x26x4 (16 1/2x26x4 1/8) Carbon, 75X74 - X6664 - X6666
ONLY: $38.20 each - BIG Quantity Discounts, FREE SHIPPING, Lowest Price Guanrantee

Lennox Filter - Air Filter, Furnace For Models: 75X74 - X6664 - X6666

Fits Lennox model numbers PCO-12C and HCFPCO12-10

Nominal size 17x26x4
Actual size 16 1/2" x 26" x 4 1/8"
Lennox Filter
Lennox Air Filter - Furnace Filter 17x26x4 (16 5/8x26x4) MERV 16, X6666
ONLY: $111.20 each - BIG Quantity Discounts, FREE SHIPPING, Lowest Price Guanrantee

Lennox Filter - Air Filter, Furnace For Models: X6666

Fits model number PCO-12C

Nominal size 17x26x4
Actual size 16 1/2" x 26" x 4 1/8"