The Vaillant Ecotec Exclusive 835 843 CO Sensor 0020209505 is an essential component for your heating system. This brand new sensor ensures your boiler operates safely and efficiently, giving you peace of mind in your home.

• Easy to install
• Reliable and accurate
• Ensures safe operation
• Compatible with Vaillant Ecotec Exclusive 835 and 843 models

Don’t compromise on safety – upgrade your heating system with the Vaillant Ecotec Exclusive 835 843 CO Sensor 0020209505 today.