Loc-Line Coolant Hose Component, Acetal Copolymer, 3/4" Fixed Mount, 3/4" Hose ID (Pack of 2) Mounts to a flat surface using a 1/4" bolt (sold separately) Connects to 3/4" Loc-Line modular hose or fittings 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 Material meets NSF/ANSI standards 14, 51, and 61 for drinking (potable) water