Faucet Connector, Push In, Tube To Male Pipe Connection, Tube Outside Dia 1/4 In, Thread Size 7/16-24, Material of Construction Acetal Copolymer, 150, Temp Range -14 To 167 Deg F For Air And 33 To 140 Deg F For Water, Color Gray, Standards NSF-61 For Drinking Water, NSF-51 For Food And FDA For Food And Beverage.