Lincoln K and KP Numbers › Lincoln Electric KP2747-1A-B25 DIFFUSER, THREAD-ON, 550 AMP Lincoln Electric KP2747-1A-B25 DIFFUSER, THREAD-ON, 550 AMP Sale Price: $365.63 Original Price: $409.50 DIFFUSER, THREAD-ON, 550 AMP PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25.000 Add To Cart Added! DIFFUSER, THREAD-ON, 550 AMP PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25.000