Lincoln Service Parts 2 › Lincoln Electric 9ST10642-391 FLEX TUBE T10642-391 Lincoln Electric 9ST10642-391 FLEX TUBE T10642-391 Sale Price: $38.63 Original Price: $44.43 FLEX TUBE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! FLEX TUBE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1