This product has now been replaced by
https://www.cityplumbing.co.uk/p/worcester-bosch-flow-turbine-adaptor-8716122264/p/437069
The Worcester Bosch sensor for the flow regulator valve in Greenstar, Greenstar 8000 Life, Greenstar 8000 Style, and Greenstar ErP boilers. The bypass valve, or flow regulator, controls the direction and flow rate of fluid in heating and plumbing systems. These valves can act as check valves, helping to prevent the drift of fluids into the wrong areas of a system.
Comes with O-ring
Technical specification
Waist Sizeaa58ci94gzTypeFlow Sensor AdaptorSupplier Part Number87161064330Brand NameWorcester Bosch
Reviews
Worcester Bosch Flow Sensor Adaptor 87161064330 - Now use 8716122264