●The internal and external polishing treatment meets the use standard ●Pipe OD:38mm, Ferrule OD:50.5MM, Fits Tri-clamp:1.5 Inch ●High pressure durable, stainless steel 304 for resistance to corrosion and high temperatures. ●Maximum operating pressure rating of 250 psi at 70 degrees F ambient temperature ●It is often used to make drinks, such as milk, beer and so on