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Selkirk 3RVI5 is an RV increaser fitting designed to transition a 3-inch vent to a 5-inch vent within the Selkirk MetalBest RV round Type B gas vent system. The fitting uses a 28 gauge galvanized steel outer shell with an aluminum inner liner, and the size refers to inside diameter (outside diameter is approximately 1/2 inch larger). It is intended for approved gas appliances in residential, light commercial, and industrial applications.
RV Type B gas vent increaser; 3 in to 5 in inside diameter; 28 GA galvanized outer with aluminum liner; for approved gas appliances
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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