The PVC DWV female adapter features a spigot x female NPT thread connection and provides a means for adapting a solvent weld connection to a threaded connection. Polyvinyl chloride (PVC) is the most frequently specified of all thermoplastic materials because of its light weight- durability- and cost-effectiveness. 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.