Pump Model Max. GPM Max. PSI Max. RPM BHP Max. Temp. F P54 4.5 4000 1635 12.4 160 P55 5.6 3000 1610 10.2 160 Weight: 18 lbs. Shaft Size: P55 22 mm, P54 24 mm Inlet: P54W 2 x 3/8" BSP & 1 x 1/2" BSP, P55 2 x 1/2" BSP Discharge: P54W 2 x 3/8" BSP, 2 x 3/8" BSP Pump Model Max. GPM Max. PSI Max. RPM BHP Max. Temp. F MP4120 8.7 3600 1420 21.8 160 MP4124 10.1 3000 1130 21 160 MP4124 12.6 2500 1420 21.9 160 MP4130 15.2 1900 1085 20 160 Weight: 72 lbs. Shaft Size: 28 mm Inlet: 2 x 1" NPT Discharge: 2 x 3/4" NPT  Pump Model Max. GPM Max. PSI Max. RPM BHP Max. Temp. F LP1000 3.0 15,000 1000 31 160 LP600 9.7 6000 1000 40.4 160 LP301A 14.1 4000 1000 39.2 160 LP400 15.1 3600 1000 37.6 160 LP200 19.0 2900 1000 38.4 160 LP450 19.7 2600 1000 35.5 160 LP350 22.6 2350 1000 36.1 160 LP250 26.0 2200 1000 39.7 160 LP121-4000 39.0 1300 885 32.5 160 Weight: 116 lbs. Shaft Size: 35 mm Inlet: LP122 1-1/2" NPT, LP301 1-1/4" BSP, Lp200 1-1/2" BSP, LP121HT 1" BSP Discharge: LP122 1" NPT, LP301 1" BSP, LP200 1" BSP, LP121HT 1-1/4" BSP Pump Model Max. GPM Max. PSI Max. RPM BHP Max. Temp. F GP7118 9.0 10000 700 64 160 GP7124 12.6 7250 750 65 160 GP6124 12.8 5800 800 53.1 160 GP6128 18.0 4000 800 51 160 GP7132 23.4 4350 750 73 160 GP6132 23.5 3100 800 52 160 GP7136 28.0 3650 700 73 160 GP5132 29.0 3000 1000 60 160 GP5136 35.0 2200 945 53.1 160 GP5145 35.0 1500 750 44.8 160 GP6140 37.0 1900 800 50.2 160 GP7142 38.0 2600 700 70.6 160 GP6145 46.5 1500 800 49.8 160 GP7155 59.5 1300 700 55.3 160 Weight: GP51: 179 lbs., GP61: 309 lbs., GP71: 374 lbs. Shaft Size: GP51: 35mm, GP61: 42mm, GP 71: 48mm Inlet: GP51:3 x 1-1/2"BSP, GP61: 2 x 1/2"NPT, GP71: 2 x 2-1/2"NPT Discharge: GP51:2 x 1BSP, GP61: 2 x 1"NPT, GP71:2 x 1-1/4"NPT