Lincoln Service Parts 2 › Lincoln Electric 9ST10642-420 FLEX TUBE T10642-420 Lincoln Electric 9ST10642-420 FLEX TUBE T10642-420 Sale Price: $40.77 Original Price: $46.88 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