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The Hart & Cooley 6RN7 increaser is constructed from 0.018 in thick G-90 galvanized steel. Designed for type B gas vent systems, this increaser features inner and outer pipes curled together as an integral unit. It provides a unique locking band that offers a 360° turning radius for pipes and fittings.
The Hart & Cooley increaser is made from galvanized steel and designed for gas vent systems, ensuring durability and flexibility.
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