Water Gauge Pipe Size 1/2 In. Connection MNPT Body Material Bronze Max Pressure 125 psig at 350 Degrees F Max Temp 350 Degrees F Glass Tube O.D. 5/8 In. Glass Length 12 In. Number of Guard Rods 2 Center to Center Length 13-1/4 In. Gaskets EPDM Stem Packing TFE Standard Pattern Pattern Wheel Material Aluminum Includes Needle Drain Valve and Ball Check Valves Standards CRN Registered OF6616.5C