Push-in fittings are unique in that they provide a very easy installation and are less bulky than compression fittings for low clearance situations. 90* male elbows feature a tube connector on one side and male pipe thread on the other side for threading into internally threaded mating parts. They come in either the same size tube/pipe or alternating sizes depending on the application. They are designed to resist pull-out, the nickel plating over brass provides excellent corrosion resistance, and have a maximum working pressure of 250 PSI.