Lincoln K and KP Numbers › Lincoln Electric KP54A GAS DIFFUSER, 025-5/64, MAGNUM GUN (52) Lincoln Electric KP54A GAS DIFFUSER, 025-5/64, MAGNUM GUN (52) Sale Price: $7.43 Original Price: $8.32 GAS DIFFUSER, 025-5/64, MAGNUM GUN (52) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! GAS DIFFUSER, 025-5/64, MAGNUM GUN (52) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000