Lincoln K and KP Numbers › Lincoln Electric KP2051-1 GAS DIFFUSER, MAGNUM GUN Lincoln Electric KP2051-1 GAS DIFFUSER, MAGNUM GUN Sale Price: $49.33 Original Price: $55.25 GAS DIFFUSER, MAGNUM GUN PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! GAS DIFFUSER, MAGNUM GUN PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000