Lincoln K and KP Numbers › Lincoln Electric KP2747-2-B25 DIFFUSER, SLIP-ON, 550A Lincoln Electric KP2747-2-B25 DIFFUSER, SLIP-ON, 550A Sale Price: $268.08 Original Price: $300.25 DIFFUSER, SLIP-ON, 550A PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25.000 Add To Cart Added! DIFFUSER, SLIP-ON, 550A PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25.000