Piston Pumps: Model Number: Ratio: Max. Flow Rate: Pump Material: Pump Type Motor 612047-X 1:1 18(68.1) Carbon Steel   Ball 2" 65011X-1C 2:1 4(15.1) Carbon Steel Ball 2" 65013X 2:1 4 (15.1) Stainless Steel   Ball 2" NM2304A-X1-311 4:1 4.2(15.8) Carbon Steel 2-Ball 3" NM2304B-X1-X1X 4:1 4.2(15.8) Stainless Steel 2-Ball 3" 650408-X-B 9:1 2.8-GPM (10.5 lpm) Stainless Steel 2-Ball 4 1/4 ” 650409-X 9:1 2.8-GPM (10.5 lpm) Stainless Steel 2-Ball 4 1/4 ” 650453-X 9:1 2.8-GPM (10.5 lpm) Carbon Steel 2-Ball 4 1/4 ” 613112-X66-B 10:1 15-GPM (56.7 lpm) Stainless Steel 2-Ball 8 ” 650866-X63 10:1 15-GPM (56.7 lpm) Stainless Steel 2-Ball 8 ” 650483-X4X 11:1 3.7-GPM (13.9 lpm) Stainless Steel 2-Ball 4 1/4 ” 650491-X43-B 12:1 3.3-GPM (12.4 lpm) Carbon Steel Chop Check 4 1/4 ” 650871-XX4-B 13:1 10.5-GPM (39.6 lpm) Carbon Steel   Chop Check 8 ” 650867-X63 15:1 15-GPM (56.7 lpm) Stainless Steel   2-Ball 10 ” 613123-X66-B 15:1 15-GPM (56.7 lpm) Stainless Steel   2-Ball 10 ” 650875-XX4-B 20:1 10.5-GPM (39.6 lpm) Carbon Steel Chop Check 10 ” 650484-X4X 22:1 1.9-GPM (7.2 lpm) Stainless Steel 2-Ball 4 1/4 ” NM2322E-11-P4X 22:1 .98-GPM (3.7 lpm) Carbon Steel Chop Check 3 ” NM2322F-11-P4X 22:1 .98-GPM (3.7 lpm) Stainless Steel Chop Check 3 ” 650683-X4X 23:1 3.7-GPM (13.7 lpm) Stainless Steel 2-Ball 6 ” 650492-X43-B 23:1 1.8-GPM (6.8 lpm) Carbon Steel Chop Check 4 1/4 ” 650691-X43-B 23:1 3.3-GPM (12.4 lpm) Carbon Steel Chop Check 6 ” 650967-X63 23:1 15-GPM (56.7 lpm) Stainless Steel 2-Ball 12 ” 613124-X66-B 23:1 15-GPM (56.7 lpm) Stainless Steel 2-Ball 12 ” 650888-XXD 28:1 6.06GPM (22.94 lpm) Carbon Steel   Chop Check 8" 650971-XX4-B 30:1 10.5-GPM (39.6 lpm) Carbon Steel Chop Check 12 ” 650485-X4X 30:1 1.3-GPM (4.9 lpm) Stainless Steel   2-Ball 4 1/4 ” 650883-X4X 40:1 3.7-GPM (13.9 lpm) Stainless Steel 2-Ball 8 ” 67120-P4X 43:1 .9-GPM (3.4 lpm) Carbon Steel   Chop Check 4 1/4 ” 67121-P4X 43:1