4.0″ STEAM PRESSURE GAUGE (0-300 psi), STEEL CASE, GLASS WINDOW, 1/4″ NPT
Connection:1/4″ NPT (Bottom Connection). Application: STEAM / AIR / GAS. Window Material: Glass. Permissible Ambient Temperature: -4°F to 176°F. Case Material: Steel. Not intended in water systems for human consumption.