IPEX
Bushings are used to reduce the size of pipe connecting to a fitting. This one is solvent welded to a fitting socket and used to connect to a smaller MPT fitting.
3/8-In. x 10-Ft. Steel Pipe, Threaded, Black
Worldwide Sourcing Black Pipe Merchant Coupling
Canplas 6" PVC DWV Cap Hub
Elkhart Products Leaded 90° Female Drop Ear Elbow
SharkBite Max Brass Push Coupling