Taps and cocks, brass, Metal pipework, valves and containers, Construction, Hose and tube fittings, metal, compression, Valves, metal, miniature, Pipe, tube and hose fittings, metal, Valves, stainless steel, Safety and relief valves, metal, Valves, metal, pressure and vacuum relief (breather valves), Valves, metal, pressure regulating, automatic