Barrow Manual+ Automatic integrated Exhaust Valve - Silver Body with Matt Silver Button

As the water cooling system pressure exhaust device, be sure to install water outlet position, when you press the front button is unsealed exhaust state, as installed in the water outlet at the bottom of the tank can cause liquid coolant overflow tank installed in the upper position is recommended .

Instructions: Press the front button is exhausting, Release the button, then automatically reset sealed Automatic+Manual

Material: Brass 
External thread size: G1 / 4 (internationally accepted regulatory teeth) 
Quantity: 1PCS