Profile: PVC Fittings Online specializes in providing large number of PVC fittings. Our products include different types of pipes, valves, fittings and adhesives. Part D100-030 is a 3" DWV coupling. This fitting is used to piece together two sections of pipe. Each end has a Hub connection for easy install. Solvent cement for PVC and CPVC is used to bond pipe with socket or "slip" end fittings. It comes in different bodies, colors, types, and can sizes. Unlike most adhesives and glues, solvent cement for PVC and CPVC actually softens the material allowing it to weld together. This creates extremely strong and durable connections that can handle everything from holding together PVC lawn chairs to providing leak-free joints in a pressurized liquid handling system. Because of their small size, compact ball valves are an excellent way to add on/off operation in a tight space. The small lever and compact design allows you to install these in areas where other valves will not work. Our compact ball valves are made from durable PVC to be used in PVC systems.