Pictured: Loc-Line Coolant Hose affiliate link, note that multiple variations of this product may be available, as such a different version may appear at this link

From the product description, check product page for current description, price and availability:

• 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

Some homebrewers use this for for mash recirculation line return because it Loc-line is repositionable.  Note the maximum stated operating temperature for this is 170 deg F.

What are others Saying? Search this product’s Amazon reviews for “mash tun”

Loc-Line Coolant Hose Assembly Kit, Acetal Copolymer, 7 Piece, 1/2″ Coolant Hose ID


Also: Loc-line on Amazon

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Make sure the components you use are compatible and rated for your intended application.  Contact manufacturer with questions about suitability or a specific application.  Always read and follow manufacturer directions.