Lincoln Service Parts 1 › Lincoln Electric 9SG7444-30 VALVE, 60 PSI MIN PRESSURE CHECK G7444-30 Lincoln Electric 9SG7444-30 VALVE, 60 PSI MIN PRESSURE CHECK G7444-30 Sale Price: $901.36 Original Price: $1,036.56 VALVE, 60 PSI MIN PRESSURE CHECK PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! VALVE, 60 PSI MIN PRESSURE CHECK PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1