Progressive Cavity Metering Pump Discharge Connection Size 1 1/4 in Discharge Connection Type NPT Housing Material Stainless Steel Intake Connection Size 1 1/8 in Intake Connection Type NPT Media Temperature (Maximum) 130 Degrees F Motor Speed (Maximum) 604 RPM Seal Material Stainless Steel Viton Viscosity (Maximum) 1 000 cps Nameplate Voltage 1/2 V DC Solid Diameter (Maximum) 1 mm Horsepower (Maximum) 1/2 hp Frequency 60 Hz Includes Manual