The isolation valve sits underneath the heating appliance and enables the user to manipulate the flow of water and gas in to the central heating system. These also allow you to cut off the supply to the boiler if there is a leak or emergency .
Supplied with O ring
Technical specification
TypeConnectorsManufacturer Model No87161480040Brand NameWorcester Bosch
Reviews
Worcester Bosch 87161480040 15Mm Service Connector