This fittings kit is an excellent accessory pack to have when installing a HomeBoost to ensure smooth and efficient installation. It includes high quality brass connectors and an isolating valve to ensure easy servicing in the future. The connectors are designed to allow the nuts to drop back far enough so the pump can be easily slid in and out of the installation if needed. With it being a rigid and clipped piped installation normal fittings can be hard to work with compared to the ones supplied in this kit. It also includes adapters to allow connection to either 15mm or 22mm pipe connection.