Lincoln Service Parts 1 › Lincoln Electric 9SM25062-28 BREATHING TUBE O-RING M25062-28 Lincoln Electric 9SM25062-28 BREATHING TUBE O-RING M25062-28 Sale Price: $2.58 Original Price: $2.97 BREATHING TUBE O-RING PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! BREATHING TUBE O-RING PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1