Petersen Industries 21 Series Pump Right Cw Rotation Tandem Unit 2 Stages Sae 2 Bolt B Sec 1”-15 Spline Shaft With OB Bearing First Stage 1-1/2 Gear Width Gear Housing Split Flange #20 1-1/4 Inlet Port Split Flange #16 1 Outlet Port Bearing Carrier Common Inlet No Outlet Blank Inlet Port Blank Outlet Port Second Stage 1-1/2 Gear Width Gear Housing Split Flange #20 1-1/4 Inlet Port Blank Outlet Port Port End Cover Blank Rear Inlet Port Orb #12 Rear Outlet Port Extended Studs Top