Knob for function switch

The Function Switch Knob is a replacement operator-control component designed for use on Technifoamer and related foaming system control panels in food and beverage hygiene applications. It provides the tactile, user-facing interface through which operators select between the system modes of foam, rinse, or off, making its integrity and secure fitment essential for safe, correct system operation. Manufactured for compatibility with the relevant function switch assembly, this replacement knob allows worn, damaged, or missing controls to be restored quickly and cost-effectively, avoiding the need to replace the entire switch unit.