... the tube release and connect easily 2.modelsincludePC,PCF,PMF,PL,PLF,NSE,PHF,PU,PV,PE,PY,PZA,PU,PG ... /4-N04 PL1/2-N01 PL06-03 PL10-04 PL16-06 PL5/16-N01 PL1/2-N02Features:Nickel-palted metal body ... -04PC16-06PC5/16-N01PC1/2-N02 Quick Connecting Tube Fitting Pl