The ST-6 Water-Activated Flow Switch mounts further downstream in pumping system than traditional vacuum switches, thereby minimizing potential leak points that can cause vacuum switches to close.

The ST-5 Flow Switch mounts further downstream in pumping system than traditional vacuum switches, thereby minimizing potential leak points that can cause vacuum switches to close.

Boasting a spring return float that allows for full mounting versatility, this forged brass body Flow Switch performs at up to 8 GPM and 4050 PSI.

For solenoid control only, this tough, impact resistant Flow Switch with Viton Seals and a Tungsten contact reed switch performs at up to 8 GPM and 4350 PSI.

For solenoid control only, this tough, impact resistant vertical mount Flow Switch with Viton Seals and a Tungsten contact reed switch performs at up to 8 GPM and 4350 PSI.

This NEW! ST-505 Flow Switch has a vertical mounting position and free floating brass magnet configuration. It mounts downstream in pumping system than traditional vacuum switches.