Lennox
Nordic Pure offers great options on Lennox Replacement Filters
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220x25x5 Lennox X6673_X6675 Replacement Air Filters MERV 15 Plus Carbon Qty 2
Actual size: 19 3/4 x 24 3/4 x 4 3/8$138.54per box $69.27 each -
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420x25x5 Lennox X6673_X6675 Replacement Air Filters MERV 15 Plus Carbon Qty 4
Actual size: 19 3/4 x 24 3/4 x 4 3/8$260.72per box $65.18 each -
20x25x5 Lennox X6673_X6675 Replacement Air Filters MERV 15 Plus Carbon Qty 1
Actual size: 19 3/4 x 24 3/4 x 4 3/8$71.06
