Lincoln K and KP Numbers › Lincoln Electric K4531-3 MAGNUM PRO CURVE HDE 250 20 FT Lincoln Electric K4531-3 MAGNUM PRO CURVE HDE 250 20 FT Sale Price: $717.21 Original Price: $803.28 MAGNUM PRO CURVE HDE 250 20 FT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM PRO CURVE HDE 250 20 FT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000