Lincoln K and KP Numbers › Lincoln Electric K4522-3-10-45 MAGNUM� PRO 500WC, 20FT. Lincoln Electric K4522-3-10-45 MAGNUM� PRO 500WC, 20FT. Sale Price: $2,040.34 Original Price: $2,285.18 MAGNUM� PRO 500WC, 20FT. PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM� PRO 500WC, 20FT. PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000