Lincoln K and KP Numbers › Lincoln Electric KP3536-1 DIFFUSER O-RINGS, 350A Lincoln Electric KP3536-1 DIFFUSER O-RINGS, 350A Sale Price: $9.73 Original Price: $10.90 DIFFUSER O-RINGS, 350A PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 10.000 Add To Cart Added! DIFFUSER O-RINGS, 350A PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 10.000