This riser extension adapter pipe fitting is made of schedule 40 PVC and has a female threaded end connection and a male threaded end connection. This adapter fitting connects pipes or fittings with different end types. It has a female National Pipe Taper (NPT) threads on one end and male NPT threads on the other for connecting to a female and male threaded pipe or fitting. The NPT threads create a tighter seal than straight threads. This riser adapter fitting adjusts to the appropriate height of connecting pipes or fittings.
