4" Box Filters

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You are here: Home > Furnace Filters > Shop Filters By Type > Box Filters > Shop Box Filters By Thickness > 4" Box Filters

We found 7 results matching your criteria.

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Honeywell FC40R1011 Return Grille Media Air Filter 20" x 25" x 4" Our Price: $42.50		Lennox X6664 - PureAir PCO-12C Replacement Filter 17" x 26" x 4" Our Price: $28.08 Receive Free Shipping when you Buy 2 or More!!!		Lennox X6667 - PureAir PCO-20C MERV 10 Replacement Filter 21" x 26" x 4" Our Price: $26.99 Receive Free Shipping when you Buy 2 or More!!!

Honeywell FC40R1011 Return Grille Media Air Filter 20" x 25" x 4".		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 X6666 - PureAir PCO-12C MERV 16 Replacement Filter 17" x 26" x 4" Our Price: $99.95 Save $1.50 per Filter and Receive Free Shipping when you Buy 2 or More!!!		Lennox X6669 - PureAir PCO-20C MERV 16 Replacement Filter 21" x 26" x 4" Our Price: $99.95 Save $1.50 per Filter and Receive Free Shipping when you Buy 2 or More!!!		Lennox X1967 - Replacement Filter 20" x 24" x 1" Our Price: $15.55 Includes Free Shipping.

Lennox PureAir PCO-12C MERV 16 Replacement Filter 17" x 26" x 4" - X6666		Lennox PureAir PCO-20C MERV 16 Replacement Filter 21" x 26" x 4" - X6669		Lennox Replacement Filter 20" x 24" x 1" - X1967


Lennox X1204 - Replacement Filter 20" x 30" x 1" Our Price: $15.55 Includes Free Shipping.

Lennox Replacement Filter 20" x 30" x 1" - X1204


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