Lincoln Service Parts 2 › Lincoln Electric 9ST12390-1 PIPE COUPLING T12390-1 Lincoln Electric 9ST12390-1 PIPE COUPLING T12390-1 Sale Price: $8.78 Original Price: $10.10 PIPE COUPLING PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! PIPE COUPLING PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1