1. Male threaded coupling (press fitting); 2. SS304,316; 3. Easy install; ... size as JIS G 3448-1997, out diameters are: 15.88, 22.22, 28.58, 34.00, 42.7 ... to replace traditional pipe fitting. Press fitting range: Coupling -- Equal coupling, Reducing coupling, Adjustable coupling, coupling with screw; Elbow -- equal elbow, reducing elbow ... : http://www.hwsspfp.com/en/download.asp Male threaded coupling