Lincoln K and KP Numbers › Lincoln Electric K5300-4 MAGNUM PRO CURVE HDE 450- DS, 25 FT Lincoln Electric K5300-4 MAGNUM PRO CURVE HDE 450- DS, 25 FT Sale Price: $1,146.18 Original Price: $1,283.72 MAGNUM PRO CURVE HDE 450- DS, 25 FT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM PRO CURVE HDE 450- DS, 25 FT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000