45MP1 Fixed Flow Pump - 25 PSI 3 GPD 120 Volt - 1/4 Inch Standard Tubing max-PSI_30 The motor's output shaft rotates

The motor's output shaft rotates at a fixed rpm which drives the roller assembly within the pump head

but as a group it may be very complicated

This Stenner chemical pump #170JL3A3STAA provides reliable chemical feeding for your swimming pool

With direct contact brush scrubbing

Hammerhead Resort Units are designed for on-site cleaning

45MP1 Fixed Flow Pump - 25 PSI 3 GPD 120 Volt - 1/4 Inch Standard Tubing max-PSI_30 The motor's output shaft rotatesThis Stenner chemical pump #45MFL1A1SUAA provides reliable chemical feeding for your swimming pool. This fixed flow pump is rated to pump 3 gallons of chemicals per day at 25 PSI. This stenner pump is a great choice for all your chemical needs.