Prevent Major Damage from Leaking Water Heaters By Early Warning of Leaks Close OUT SPecial! Unit functions the same as the newer version with lower cost and same guarantee! Costly water damage from leaking or failed water heaters cost thousands of dollars. Keep water damage to a minimum with a water heater Floodstop FS3/4C, compression fit water valve and water alarm. This automatic water valve shuts off water to a water heater and sounds a loud 87 dB alarm. This compression fitting Flood Stop has a 3/4 inch brass full port water valve. The full port water valve meets the Vermont and California requirements for lead free water valves for drinking water. Use on all 3/4 inch copper pipe applications. Choose other Floodstops for smaller or larger pipe installations. Homeowner or plumber can quickly install this water damage prevention unit in 15 minutes or less. The Floodstop for water heaters features a security system and auto dialer output contacts. The water shut off controller is AC with a battery back up. With a full port motorized stainless steels ball valve, the FloodStop uses a brass valve assembly lined with Teflon for long wear. The water leak sensor (included) is double sided. Water Heater Flood Stop Features: Optional Additional Sensors: Increase coverage. Sensors "train" together. Valve Length: 3.5 inches. Reset and Test Buttons: Test valve performance without water. Controller: 20VAC and/or battery backup (4 C batteries).. Simplicity: Easily installed, operated and maintained. Multiple Applications: Residential, condo and apartment dwellings. Operation: Full port ball valve automatically shuts off water supply to water heater when water sensor/sensors get wet. Single Water Appliance Application: No wires to route throughout the home Loud 85 decibel Alarm: Beeps. Mute button. One Water Sensor Included: 1.5" X 7.5", double sided. Add optional sensors in series. AC Adapter Cord: 6 ft. long Wire Length from the Controller to the Valve: Abou