S420 S34 Variable Speed Metering Pump - 25 PSI 85 GPD 120 Volts - 3/8 Inch horsepower_3/4 HP and has a smooth surface

and has a smooth surface

This is a Hayward SPX3220CM Impeller with Screw for 2-1/2 HP TriStar SP3200X Series Pumps

No tools are required

could result in death or serious injury

S420 S34 Variable Speed Metering Pump - 25 PSI 85 GPD 120 Volts - 3/8 Inch horsepower_3/4 HP and has a smooth surfaceThis Stenner S420 Model S34 is a Variable Speed Peristaltic Metering Pump with 25 PSI, 85 GPD, 120 Volts and 3 8 inch Santoprene tubing. The pump features totally enclosed NEMA 4X housing, brushless DC motor, three dedicated output relays, remote start or stop,and LED pump status indicators. The S420 Series Variable Speed Metering Pumps inject solution in direct proportion to an incoming 4 20ma analog signal. The operator would scale the pump's