2 1/2" X 1 1/4" Concentric Reducer, Grooved x Threaded, UL Listed and FM Approved

2 1/2" X 2" Concentric Reducer, Grooved x Threaded, UL Listed and FM Approved

4" X 2" Concentric Reducer, Grooved x Threaded, UL Listed and FM Approved  

2" X 1 1/2" Concentric Reducer, Grooved, Galvanized, UL Listed, FM Approved, LPCB and VdS

5" X 4" Eccentric Reducer, Grooved, UL Listed and FM Approved