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Lennox Filter
Lennox Air Filter - Furnace Filter 20x21x5 (20x20 5/8x4 3/8) MERV 8, X8790
ONLY: $27.20 each - BIG Quantity Discounts, FREE SHIPPING, Lowest Price Guanrantee

Lennox Filter - Air Filter, Furnace For Models: X8790

Fits Lennox model numbers PCO14-23

Nominal size 20x21x5
Actual size 20" x 20 5/8" x 4 3/8"
Lennox Filter
Lennox Air Filter - Furnace Filter 20x21x5 (20x20 5/8x4 3/8) MERV 11, X8790
ONLY: $31.20 each - BIG Quantity Discounts, FREE SHIPPING, Lowest Price Guanrantee

Lennox Filter - Air Filter, Furnace For Models: X8790

Fits Lennox model numbers PCO14-23

Nominal size 20x21x5
Actual size 20" x 20 5/8" x 4 3/8"
Lennox Filter
Lennox Air Filter - Furnace Filter 20x21x5 (20x20 5/8x4 3/8) MERV 13, X8790
ONLY: $34.20 each - BIG Quantity Discounts, FREE SHIPPING, Lowest Price Guanrantee

Lennox Filter - Air Filter, Furnace For Models: X8790

Fits Lennox model numbers PCO14-23

Nominal size 20x21x5
Actual size 20" x 20 5/8" x 4 3/8"
Lennox Filter
Lennox Air Filter - Furnace Filter 20x21x5 (20x20 5/8x4 3/8) Carbon, X8790
ONLY: $40.20 each - BIG Quantity Discounts, FREE SHIPPING, Lowest Price Guanrantee

Lennox Filter - Air Filter, Furnace For Models: X8790

Fits Lennox model numbers PCO14-23

Nominal size 20x21x5
Actual size 20" x 20 5/8" x 4 3/8"
Lennox Filter
Lennox Air Filter - Furnace Filter 20x21x5 (20x20 5/8x4 3/8) MERV 16, X8790
ONLY: $107.20 each - BIG Quantity Discounts, FREE SHIPPING, Lowest Price Guanrantee

Lennox Filter - Air Filter, Furnace For Models: X8790

Fits Lennox model numbers PCO14-23

Nominal size 20x21x5
Actual size 20" x 20 5/8" x 4 3/8"