Reducing bushes will be needed when connecting piping or fittings of different sizes. They can also be used to transition from one pipe type or size to another. The reducing bush my be an essential part in the water system as it allows for situations where a pumps outlet or inlet maybe far bigger than necessary. By using a reducing bush the pipe used can be a fraction of the size saving money.

Keep in mine that when using a reducing bush on a pump careful decisions are needed as the fluid interacts with the reducing bush which causes vibrations.