Tri-Clover Pressure Gauge with 1.5" Tri-Clamp connection. This High Quality Fluid filled pressure gauge is widely used in the Food & Beverage Industry. It has a Sanitary surface and the Product does not come into contact with the internal parts of the pressure gauge. Widely used in Brewing and wine making in fermentation tanks, Briting, Pressure transfer, Cartridge filter houses and so on.