Push-in fittings are unique in that they provide a very easy installation and are less bulky than compression fittings for low clearance situations. Male straight fittings feature a tube connector on one end and male pipe thread on the other for threading into internally threaded mating parts. They come with 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.