NIBCO 4 in. x 3 in. PVC DWV Hub x Hub Reducing Coupling

The NIBCO 4 in. x 3 in. PVC DWV Hub x Hub Reducing Coupling is designed for use with DWV piping systems. The coupling can be used to adapt PVC pipe to standard female pipe threads. PVC DWV is easy to install and is joined by solvent cementing or threading. PVC fittings exhibit high corrosion and chemical resistance and will not rust, scale, pit or corrode.|PVC requires a primer (not included) before cementing|Used with DWV piping|Adapts PVC pipe to standard female pipe threads|Hub x hub connection|Solvent welded connections|ASTM D2665|NSF/ANSI standard 14|UL Listed 94V-0|NSF U.P. certified