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The SIOUX 835-3 TrapShield is a device for trap evaporation protection. It installs directly in a three-inch drain. This device works as a one-way valve. It allows water flow and stops evaporation from the P-trap. This prevents sewer gases from entering the room. It is made with a soft silicone molded gasket and a rigid polypropylene top flange. This makes it suitable for drains that are not often used, such as in vacation properties, boiler rooms, and garages. The TrapShield is a practical alternative to trap primer devices.
This device effectively blocks odor and gases from drains.
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