The Vaillant Ecocraft VKK/ecoTEC Plus VU/VUW Water Pressure Sensor 0020059717 is a brand new, genuine Vaillant spare part with a Vaillant manufacturer's guarantee. The flow switch is an essential component to both Domestic Hot Water and Heating systems as it acts as a safety device that ensures the appliances burner cannot ignite when the system is either low or empty of water. This component triggers when the pump activates to feed the instruction back to the PCB to allow for the ignition sequence to commence.

• Suitable for Vaillant Ecotec and Ecocraft boilers
• Suitable for Vaillant Flexotherm and Geotherm Air Source Heat Pumps
• Push-Fit connection
• Clips and O-ring included