To connect PVC pipes with a Adaptor 90° Plain Tee With Female Threaded Off-Take at a 90° angle. You will need a PVC 90° Tee Female Threaded Offtake. These are also commonly referred to as a PVC 90° Tee Plain/Threaded or uPVC Solvent Weld Plain/Threaded Female Tee. This T-shaped fitting has two “plain” solvent-weld sockets for connecting to PVC pipe. Also one female-threaded outlet for a mechanical connection.