Loc-Line Coolant Hose Assembly Kit, Acetal Copolymer, 7 Piece, 1/4" Coolant Hose ID Kit of 7 acetal copolymer modular hose components includes 2 hose segments, 3 round nozzles, and 2 NPT connectors Components attach to each other by the Loc-Line ball-and-socket design, and the NPT connector has one end threaded for connecting to NPT pipe Acetal copolymer plastic 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