Lincoln K and KP Numbers › Lincoln Electric K3136-2 MAGNUM PRO 550 DUAL SCHEDULE, 15' Lincoln Electric K3136-2 MAGNUM PRO 550 DUAL SCHEDULE, 15' Sale Price: $1,218.24 Original Price: $1,364.43 MAGNUM PRO 550 DUAL SCHEDULE, 15' PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM PRO 550 DUAL SCHEDULE, 15' PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000