Lincoln K and KP Numbers › Lincoln Electric KP4379-1 SA GAS DIFFUSER, 350A Lincoln Electric KP4379-1 SA GAS DIFFUSER, 350A Sale Price: $24.38 Original Price: $27.30 SA GAS DIFFUSER, 350A PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! SA GAS DIFFUSER, 350A PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000