Lincoln Electric KP4766-1-B25 DIFFUSER, THREAD-ON, 550A, COPPER Sale Price: $616.20 Original Price: $665.50 DIFFUSER, THREAD-ON, 550A, COPPER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25 Quantity: Add To Cart Added! DIFFUSER, THREAD-ON, 550A, COPPER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25