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The Hart & Cooley RN Round Vent Increaser with MPN 3RN4 is designed for type B gas vent systems. This increaser features a diameter of three to four inches and dimensions of three and thirteen-sixteenths x four and one-half inches outer diameter, ensuring compatibility with standard vent pipes.
This vent increaser includes a unique locking band that provides a 360-degree turning radius for easy installation. The galvanized outer pipe protects against corrosion and damage, extending the life of the system.
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