Lincoln K and KP Numbers › Lincoln Electric K3092-3 MAGNUM PRO CURVE 300 DUAL SCHEDULE, 20' Lincoln Electric K3092-3 MAGNUM PRO CURVE 300 DUAL SCHEDULE, 20' Sale Price: $786.68 Original Price: $881.08 MAGNUM PRO CURVE 300 DUAL SCHEDULE, 20' PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM PRO CURVE 300 DUAL SCHEDULE, 20' PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000