h2Flow Controls


Protect bathers from main drain suction entrapment with the PSP20 automatic pump shut-off systems for VGB compliance

It is critically important to equip your commercial pool and spa with the PSP20, Automatic Pump Shut-off System, for protection against main drain suction entrapment. Countless pool contractors have installed more than 350,000 systems across the globe, providing the needed protection required by the Consumer Protection Safety Commission and other agencies. The PSP20 Automatic Shut-off System uses the pump motor load to sense any obstruction, keeping swimmers safe from drain entrapment, that can cause serious injury or even drowning. Installation and set-up of the PSP20 can be completed in 1 to 2 hours in most cases. The PSP20 mounts between the circuit breaker panel and pump, and easy to follow programming and calibration only takes a few minutes to complete the PSP20 installation.

Additional Benefits

  • The PSP20 is VGBA compliant, NSF Certified, and UL Approved
  • Easy to install, program, and calibrate
  • No plumbing required
  • The PSP20 eliminates nuisance tripping
  • All PSP20 models are available for your desired voltage, full load AMPs and motor HP ranges
  • Filter backwashing and pool vacuuming do not require a bypass
  • Alarm output is optional
  • The PSP20 does not require any type of winterizing
  • Hydrostatic relief valves do not impact system
  • Minimal cost


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