The Vaillant part is based on the diverter valve section. The diverter valve is an instrument that only appears in combi boilers. It allows the hot water to be directed to the central heating like radiators, etc., or to the hot water system taps, etc.
Available in Black Colour
Fits a Variety of Vaillant Appliances
Technical specification
Product TypeDiaphragmWaist Sizeab67cg19guTypeDiaphragmSupplier Part Number20107704Brand NameVaillant