Floodstop Automatic Water Shut Off for Washing Machines, 90 Degree Valves

FloodstopSKU: FS34H90-V4



Washing machines or their water lines can easily spring a leak from age, due to a malfunction or when something gets accidentally added to the wash.  Hoses can rupture, fittings may crack and so on.  FloodStop gives you peace of mind and prevents excessive water damage when something does wrong.

This model comes with two automatic valves with 90 degree angles to shut off both hot and cold water when water is detected.

FloodStop automatic flood prevention devices use a wired water sensor to detect a leak.  When water is sensed, the FloodStop controller automatically closes the water valve to help avoid devastating water damage.  At the same time an alarm sounds.

The FloodStop V4 controller can be powered with the included plug-in power supply with 4 AA batteries as a back up instead of power failure.  Or where a receptacle isn't available for power, it can be run batteries only.  Full time power is recommended where available.

The FloodStop controller has a built in "normally open" relay that closes when triggered.  This relay output can be connected to an auto dialer, alarm system or automation system.

Add an additional water sensor(s):  FSXS01

Add a WiFi notification module to provide email or text notifications:  FS-WIFI

FloodStop V4 Features:

  • Detects water leaks and automatically closes water valve
  • Motorized full port ball valve
  • Built in alarm on detection
  • Normally Open dry contact closure on detection
  • Runs on AC power with battery backup (AA batteries not included)
  • Optionally may run on battery only for up to 1 year
  • Low battery warning chirps indicate time to change batteries 


FloodStop FS3/4H90-V4 includes:

  • 2 x 3/4" motorized 90 degree ball valves with threaded union
  • 1 x FloodStop controller
  • 1 x Leak Sensor
  • 1 x Power Supply

Flood Stop FS3/4H90 Manual

Additional specifications:

  • UL listed class 2 wall adaptor, 115AC/9VDC
  • Motorized Ball Valve: Lead free, CNC machined
  • Motor operates at 6VDC
  • Rated 0-180 PSI. Max 250 PSI. Solid brass.
  • Alarm Output: 1 Normally Open dry contact
  • Sensor: 1.25 X 7.5 inch, double sided
  • Additional sensors may be added in series
  • Alarm: Beeping with Mute button

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