CS-155RG Spray Centrifugal with 12 GPM Hydraulic Motor, Factory Installed Motor Protection Features:Shaft Size: 3/4″ engine shaftRequired HP: 5 HPJohn Blue CS-155RGProduct Specifications: Suction: 1-1/2" FNPT & 220 Flange Discharge: 1-1/4" FNPT & 200 Flange Maximum Flow: 142 GPM @ 3600 RPM Maximum Pressure: 105 PSI @ 3600 RPM Pump Breakdown: CS-155RG Pump Manual: CS-155RG