Water Gauge Pipe Size 1/2 In. Connection MNPT Body Material Bronze Max Pressure 200 psig at 400 Degrees F Max Temp 400 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 Heavy Pattern Pattern Wheel Material Plastic Composition Includes Ball Check Valves Standards CRN Registered OF6616.5C