Lincoln Service Parts 1 › Lincoln Electric 9SG4481-16 PRESSURE RELIEF VALVE G4481-16 Lincoln Electric 9SG4481-16 PRESSURE RELIEF VALVE G4481-16 Sale Price: $41.39 Original Price: $47.60 PRESSURE RELIEF VALVE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! PRESSURE RELIEF VALVE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1