Reliable metering performance—guided dual check valves provide precise seating and excellent priming and suction lift.

• PVC and PTFE construction with external control

The 4 to 20 mA pumps feature automatic control with 4 to 20 mADC direct or external pacing, reliable timing circuits, stop function, and manually adjustable stroke rate and length. Operate pump in automatic or manual mode by selecting the proper setting on the "Auto-Off-Manual" switch. Circuit protection guards against voltage and current upsets. Install pumps indoors or outdoors.