Blodgett 18234 Potentiometer Knob is a replacement part for oven models such as KCO-25E and many series including CTB, CTBR, DFG 50, DFG 100, and Mark V with solid state controllers. The temperature setting adjustment is made by this potentiometer knob so that one would be able to control the temperature very precisely, in terms of cooking condition for the better result possible. It is built to last, endure the strain of commercial kitchen use. But its intuitive design not only brings an enormous boost to user experience, but it also ensures consistent cooking performance.