Lincoln K and KP Numbers › Lincoln Electric KP2743-1-50R-B25 NOZZLE 550, THREAD-ON, 1/8R 1/2 ID Lincoln Electric KP2743-1-50R-B25 NOZZLE 550, THREAD-ON, 1/8R 1/2 ID Sale Price: $926.12 Original Price: $1,037.25 NOZZLE 550, THREAD-ON, 1/8R 1/2 ID PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25.000 Add To Cart Added! NOZZLE 550, THREAD-ON, 1/8R 1/2 ID PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25.000