Lincoln Service Parts 2 › Lincoln Electric 9ST10491 KNOB FOR POTENTIOMETER T10491 Lincoln Electric 9ST10491 KNOB FOR POTENTIOMETER T10491 Sale Price: $6.26 Original Price: $7.20 KNOB FOR POTENTIOMETER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! KNOB FOR POTENTIOMETER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1