Lincoln Electric KP4766-1 DIFFUSER, THREAD-ON, 550A, COPPER Sale Price: $26.89 Original Price: $29.04 DIFFUSER, THREAD-ON, 550A, COPPER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Quantity: Add To Cart Added! DIFFUSER, THREAD-ON, 550A, COPPER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1