Lincoln Service Parts 1 › Lincoln Electric 9SM22778-2 KNOB, 1.5 M22778-2 Lincoln Electric 9SM22778-2 KNOB, 1.5 M22778-2 Sale Price: $24.79 Original Price: $28.51 KNOB, 1.5 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! KNOB, 1.5 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1