QCC female hand swivel nut (RHT) replaces POL to connect to outside threads of Type I cylinder valves. 20" long, thermoplastic, CGA listed, high pressure hose assembly with 1/4" inverted male flare fitting. California Proposition 65 WARNINGBrass nozzles, quick connects, sprayer nozzles, hose fittings connectors, clamps, and couplings contain lead, a chemical that is known to the state of California to cause cancer, birth defects and other reproductive harm.