Loc-Line Acid Resistant Coolant Hose Assembly Kit, Yellow Polyester, 7 Piece, 1/2" Hose ID Kit of 7 yellow acid-resistant polyester 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 Polyester has a yellow color, resists corrosion and moisture, and is for use with acids, alcohol, aromatic solvents, gasoline, greases, hydrocarbons, oils, and salt solutions Maximum operating temperature of 170 degrees F except when used with acids, which reduce the operating temperature to 150 degrees F Material is compliant with REACH and RoHS standards