1/8" Auto Vent Valve

1/8" Male Pipe Thread, Automatic Vent Valve, For Boiler Piping To Automatically & Continuously Vent Air From The System Water & Prevent Air From Collecting, Utilizes A Float To Actuate The Valve Plug, Operates As An Anti-Vacuum Device, Maximum Working Temperature 240 Degrees Fahrenheit, Maximum Working Pressure 150 PSI.