Lincoln Service Parts 2 › Lincoln Electric 9SS28188-23 KNOB S28188-23 Lincoln Electric 9SS28188-23 KNOB S28188-23 Sale Price: $30.19 Original Price: $34.72 KNOB PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! KNOB PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1