Lincoln Service Parts 2 › Lincoln Electric 9ST10642-439 FLEX TUBE T10642-439 Lincoln Electric 9ST10642-439 FLEX TUBE T10642-439 Sale Price: $5.12 Original Price: $5.89 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