Exclusively for Plumbing Industry Professionals

Increase the flow of your profits!

FloodStop FS1NPT for Water Heater or Main Supply



FloodStop FS1NPT is a point of use, leak detection and automatic water shut-off system designed for residential and commercial dwellings. The FS1NPT uses a Motorized Ball Valve to automatically shut off the water supply whenever your water heater leaks.

Install in Minutes!

Kit includes everything you need to protect your property:

  • 1" Motorized Ball Valve installed on cold water inlet.
  • Water sensor is placed on the floor.
  • Control unit is mounted with screws or velcro (included).
  • Optional Power Sources: AC & (4) AA Batteries, or Batteries alone!


Technical Specifications:

  • UL listed class 2 wall adaptor, 115AC/9VDC
  • UPC listed Full-Port Motorized Ball Valve: CNC machined.
  • Motor operates at 6VDC.
  • Signal Output: 1 Normally Open, 24 Volt/2 amp rated
  • Motorized Ball Valve: CNC machined with MIP X FIP.
  • Rated 0-180 PSI. Max 250 PSI. Solid Brass. AB1953, UPC, CUPC, NSF61 cert.
  • Rated 32-212 degrees F
  • Sensor: 1.25x7.5 inch, double sided. Additional sensors may be added in series
  • Alarm: Beeping with mute button