Lincoln Electric KP4781-1-B25 DIFFUSER, THREAD-ON, 550A, EXT. REACH Sale Price: $532.18 Original Price: $574.75 DIFFUSER, THREAD-ON, 550A, EXT. REACH PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25 Quantity: Add To Cart Added! DIFFUSER, THREAD-ON, 550A, EXT. REACH PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25