Shaft Length: 2 1/16 in

Each arm is fully welded to its own mounting flange

and stainless steel dust cover

Model Number: C4

The Bradley S19224SS Halo is a wall mounted stainless steel eye/facewash unit that exceeds the American National Standards Institute's Z358

Milwaukee Valve Check Valve, 4 in, Single, Inline Swing, Cast Iron, Flange x Flange - 2974-M 4 Height-32" Shaft Length: 2 1/16 inCast Iron,Bronze seats and disc.,Meet MSS SP 71 and ASTM B16. 1 standards.,Flanged End Swing Check Valves,Allow flow in only 1 direction to prevent backflow; Mount horizontally, except cast iron models mount vertically or horizontally.