Features * Guided Quad Check Valve System * Bleed Valve Assembly Standard * Feed Rate Control * Duplex Models. Both Series are configurable for dosing two chemicals at different rates. Engineering Data Pump Head Materials Available : Clear PVC PVC PP 316SS Diaphragm : CSPE Viton PTFE-faced CSPE Check Valves Materials Available Seats/ O-Rings : PTFE CSPE Viton Balls : Ceramic PTFE 316 SS Fittings Materials Available : GFPPL PVC PVDF Bleed Valve : Same as fitting and check valve selected, except 316SS Injection Valve & Foot Valve Assy : Same as fitting and check valve selected Tubing : Clear PVC White PE Black PE Viscosity Max CPS : 300 CPS Power Input : 115 VAC/ 60 HZ, 230 VAC/ 50 HZ 230 VAC/ 60 HZ Temperature Limitations : 125pF / 51pC max. Shipping Weight : 8 lbs. / 3.63kg.