Conbraco Industries 24-652-00 3/4" Water Gauge W/16" Glass

The Conbraco Industries 24-652-00 is a 3/4-inch water gauge with a 16-inch glass tube that is specifically suited for hydronic heating applications. This visual aid monitors the water pressure inside the closed-loop system, serving as a pressure gauge. A U-shaped glass tube that is half filled with water makes up the gauge. One side of the U-tube experiences pressure from the system's increased water pressure, which raises the water level on that side of the tube. The difference in water levels between the two sides indicates the water pressure. You can quickly and simply find out the pressure in the system thanks to the gauge's scale, which is marked on the glass tube and is usually expressed in pounds per square inch (psi).