A Worcester Bosch flexible hose for use in the pipework of Greenstar Oil and Greenstar ErP boilers. In a boiler pipework either allows water into a heating unit, including the mains water supply and the pipework on a wall jig, or is found within an appliance and carries water between the various mechanisms that require it, including the diverter valve and heat exchanger.

A Worcester Bosch flexible hose for use in the pipework of Greenstar oil and Greenstar ERP boilers. The HNBR refers to Hydrogenated Nitrile Butadiene Rubber which is used commonly in oil hose lines. This is a genuine Worcester Bosch spare part so you can shop with confidence.