Once the water flow comes out of the chamber

Clamping face is 1 1⁄2 inches

It features a siphon jet

Non current limiting

heavy duty

1/4" 0-60 BOT MOUNT GAG SURGE PROTECTORS Once the water flow comesUse this pressure gauge for reliable service with compressors, regulators, air lines, pneumatic tools and equipment. Made up of a brass mechanism, ABS case and a polycarbonate lens, this gauge is resistant to heat, corrosion, water, salt water and oil. Can also be used in steam applications if less than 120 degrees Fahrenheit. The 1 4" NPT pressure gauge has a bottom mount and offers a pressure range of 0 to 60 PSI. 2" face diameter.