The Vaillant connection piece is for installation in the isolation valve of ecoTEC VUW (condensing) and ecoTEC VUI (condensing) boilers. Usually situated underneath heating appliances, the isolation valve lets the user regulate the flow of gas and water into a central heating system. It also allows the user to stop the flow in case of a leak or emergency.
Supplied with O-rings, clips and screws
Technical specification
TypeConnection PieceManufacturer Model No179031Brand NameVaillant