Selector knob De Dietrich JJJ005409810

Replace a worn or broken selector knob on your boiler or burner control panel with this ergonomic spare part. Designed for easy grip and precise operation, it allows you to switch between modes or settings smoothly. As a common component in heating equipment maintenance, this knob is a simple yet effective fix for restoring full functionality. Whether you are repairing a gas burner or updating boiler controls, this selector knob offers a perfect fit and durable performance.