IMPERIAL 8-in 30 Gauge Galvanized Steel Round Duct ReducerThis Imperial Increaser Reducer is used to effectively reduce or increase the diameter of galvanized round pipe when making connections. The no crimp connector is used to transition from 8 in pipe to 6 in pipe in an HVAC system. It features hemmed collar edges for strength and a snug fit, and is made from 30 gauge galvanized steel for durability. This increaser reducer is easy to install and is suitable for use in most heating, venting and air