Wetend - Waterway 1HP, 1.5" Center Discharge Hi-Flo, 48 Frame Mfg. #310-1130 Reliable center discharge performance. • 1-1/2" pipe size (plumbing) • Wet end can be rotated for easy installation. • Uses 48 frame through bolt motor Related Items • Impeller 1HP Part # 3104000 • Pump Seal Part # 3193100B