Water Powered Monitor Oscillator, Model WPO-2000, 4” CL150 Flat Face Flange Connection, 6.50” Swivel Bracket, Degree Arc Of Oscillation: 15-120, Degree/Sec Oscillating Speed Range: 0-30, Max Operating Pressure: 200 PSI (13.8 bar), 316 Stainless Steel Construction, FM approved