Charlotte Pipe 1" Coupling Pipe Fitting - (Socket x Socket) Schedule 40 PVC Pressure Durable, Easy to Install, High Tensile and Sound Deadening for Home or Industrial Use (Single Unit): Pipe Fittings:
Charlotte Pipe 4 in. PVC DWV Repair Coupling PVC001301200HD - The Home Depot
1-1/4" Sch 40 PVC Deep Socket Coupling Soc 479-012