Model H5U20-00Y is a 2-way, internally piloted, normally closed solenoid valve, with assisted lift model from our "H" valve series. This general purpose solenoid valve features a 1" pipe and an operating pressure range of 0-85 psi. A 12-watt coil powers at 24 V DC. The NBR + PA valve seal allows an operating temperature of 14-195° F. The valve comes pre-wired with a 10 foot 3 led cord. The yellow/green is not used. The Blue and Brown is 24VDC+ and 24VDC-. Wire for consistency in your system.