Loc-Line Coolant Hose Component, Acetal Copolymer, Connector, 1/4" Hose ID, 1/4" NPT (Pack of 4) Connects Loc-Line hose to pipe Fitting connects to Loc-Line modular hose on one end and NPT threaded female pipe on the other Acetal copolymer plastic has an orange color, resists corrosion and moisture, and can be used with acetone, alcohol, ethyl, greases, oils, commercial dish detergents, gasoline, lacquer solvents, and sodium hydroxide Maximum operating temperature of 170 degrees F Meets NSF/ANSI standards 14, 51, and 61 for drinking (potable) water