1/2" NPT Male Connections, 5/8" OD x 12" Length High Pressure Glass, Rough Bronze Liquid Level Gauge with Automatic Ball Checks, PTFE with Hypalon Glass Seal, Braided PTFE with Aramid Stem Packing, and Composite Plastic Type Wheel (Rated at 250 PSI @ 400F, 500 PSI @ 100F)