1/4 MNPT tank valves are designed for use in filling vessels with air. Standard valve core with plastic cap measures at 1 1/2 overall length. Maximum pressure of 200 PSI. Cap thread size of .305-32. Product Features:1/4 male national pipe threadsMaximum of 200 pounds per square inchValve prevents air from leaking out while allowing for air to pass through for inflating
