The DynaQuip Controls WCMVLF 3/4 WaterCop 'Rough-in' 3/4" Brass Valve works with the Watercop Automatic Water Shut-Off System. The valve is an industrial quality, full-flow brass valve that installs on the incoming main water supply line within a home or office for years of worry-free operation. Includes lever handle for rough-in installation. Requires WaterCop Actuator Motor and Flood/Freeze Sensors (sold separately) to operate as an Automatic Water Shut-Off System. This valve is UL tested with a 600 psi capacity. This heavy duty industrial valve is also widely used for LP gas, natural gas, and fire protection system applications.