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The POLYLOK PCF-PLVF Poly-Air Activated Carbon Vent is a carbon filter designed to remove offensive odors, such as Hydrogen Sulfide, from roof vents. This vent cover fits existing 3-inch and 4-inch piping, providing an effective solution for eliminating unpleasant septic odors. It contains 1lb of activated carbon and is easily installed on existing vents to prevent foul air from drifting into open windows.
Eliminates unpleasant septic and house odors from roof vents.
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