Lincoln K and KP Numbers › Lincoln Electric K2951-3 MAGNUM PRO CURVE 300, 20FT Lincoln Electric K2951-3 MAGNUM PRO CURVE 300, 20FT Sale Price: $681.18 Original Price: $762.92 MAGNUM PRO CURVE 300, 20FT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! MAGNUM PRO CURVE 300, 20FT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000