Pneumatic FittingsChina Pure Brass 1/2 to 1/4inch Adapter Male Thread, 1/2 to 3/8inch Hose Joint Valve, 1inch to 1/2inch Adopter/1/2 to 3/4inch Pipe Connector Fittings, Connector Joint, Find details and Price about China Water Treatment Parts, Water Purifier Adapter from Pure Brass 1/2 to 1/4inch Adapter Male Thread, 1/2 to 3/8inch Hose Joint Valve, 1inch to 1/2inch Adopter/1/2 to 3/4inch Pipe Connector Fittings, Connector Joint