Washing Machine Leak Alarm & Automatic Water Shut-Off System with Integrated Outlet Box

SKU: RS-090-E

The FloodMaster RS-090-E detects washing machine leaks and automatically shuts off the feed lines to prevent extensive flooding. This kit features an outlet box with built-in leak detection receiver and pre-installed water hammer arrestors. It includes these commercial-grade components:

  • 1 – Leak detection receiver
  • 1 – Outlet box with mounting straps (4) and trim plate
  • 2 – Water hammer arrestors
  • 1 – Magnetized water sensor with 8' lead wire
  • 1 – Metal plate for sensor placement
  • 1 – 120V AC power plug with 7' lead wire
  • Automatically shuts off both the hot and cold water supply lines and sounds an alarm when a leak is detected
  • Features an integrated outlet box and trim plate for easy installation and a clean finish
  • Compact, magnetized leak detection sensor fits nicely next to or under the washer; features a 1/16" stand-off to allow for air circulation and eliminate false alarms caused by humidity from the floor
  • Sensor can be installed securely on the included metal plate
  • Integrated water hammer arrestors for the hot and cold water lines minimize stress on supply hoses
  • System is reusable, with an easy reset button
  • Plugs into a standard wall outlet
  • Insurance discounts may be available – contact your provider

RDT recommends that installations be completed by a licensed plumber to ensure that all local code requirements are followed.




  • MA Board of Registration of Plumbers Approval Code # P1-1118-206
  • Meets UL 94 5VA flammability standard*

* Materials only. Product must be installed according to all federal, state and local building codes.