NDS has a comprehensive line of sewer and drain fittings include valves, couplings, and connectors in PVC and styrene. Diverter & Backwater Valves are manufactured from PVC or ABS, our Diverter & Backwater Valves are durable and easy to install and replace. Controls flow to up to three septic tank leach fields. Protects low areas from street sewers backflow. Solvent Weld Fittings include tees, elbows, adapters, repair couplings, and reducer couplings manufactured from durable PVC and Styrene. Securely connects sewer and drain pipes. Flexible Couplings are manufactured from black PVC with bactericides and fungicides added for extra protection. Clamps are stainless steel. Quickly connects sewer, drain, waste and vent piping in any pipe material. Connectors and O-Rings install easily and quickly to provide leak-proof seals. Seals connections between most types of sockets, hubs, bells and spigots. Quickly connects 4" house pipe and 6" sewer pipe. Flexible Saddles are available in tee and wye configurations, our Flexible Saddles have elastomeric construction for maximum strength and flexibility. Tightly seals sewer main pipe with 6" diameters and up.