NDS 4 in. x 3 in. PVC Hub x Hub Reducer Coupling

NDS 3 in x 4 in. PVC Hub x Hub Reducer Coupling is used to connect 4 in. sewer and drain pipe to 3 in. sewer and drain (S and D) pipe, in the installation of non-pressurized drainage and sewer piping systems. PVC construction is durable, lightweight, economical and resistant to corrosion and chemicals. Suitable for use with sewer and drain pipe.