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Coupling - Pipe Thread 3/8"

Sold in sets of 5

A coupling usually joins two pieces of the same pipe material that are also the same size. It's a solid piece that either has female threads on the inside of both ends or no threads. The nonthreaded version requires gluing if it's any form of PVC or soldering if it's copper. Couplings come in handy when a piece of pipe is too short, allowing you to add another pipe to extend it. They're also useful for repairing a leaky pipe. Reducing couplings or bell reducers have a different size at each end, allowing you to switch sizes along the pipe run. They're designed to be somewhat permanent once installed and may need to be cut out if there's a problem with one of the connected pipes later.