Do you need to add a pressure gauge to your 1½" Tri Clamp system? Unlike capillary tube pressure gauges, which are impossible to clean because they contain a narrow sensing tube, this is a sealed diaphragm sanitary pressure gauge. A stainless steel diaphragm separates the capillary tube and contents of the tank.
This improves the reliability, longevity and sanitary design of the gauge. If you have a stainless steel fermenter that you want to check pressure this is the best way to go. In addition,the gauge is filled with liquid glycerine making it more reliable and resistant to false readings. 0-29 PSI range, made of type 316 stainless.