Worcester Bosch 87167713530 O rings (10)

An official Worcester Bosch branded spare, this 10 piece O-ring kit is suitable for use in the hydraulics of Greenstar, Greenstar 8000 Life, Greenstar 8000 Style, Greenstar ErP and Compact boilers. O-rings, gaskets and washers are used in many different areas of the boiler to join parts to pipework.