The Worcester Bosch 87161063560 Supply Manifold Complete/Flow Unit is a component designed for residential boilers, specifically the Greenstar and B/Gas models. Manufactured by Worcester, this unit is essential for the efficient operation of central heating systems in homes. With a focus on quality and durability, this supply manifold unit plays a critical role in ensuring warm and comfortable living spaces by facilitating the circulation of heating water throughout the system. This product is a reliable choice for those looking to maintain or upgrade their residential boiler setup.