Lincoln K and KP Numbers › Lincoln Electric K2704-3 COUGAR AIR-COOLED GUN 50 FT Lincoln Electric K2704-3 COUGAR AIR-COOLED GUN 50 FT Sale Price: $4,609.23 Original Price: $5,162.34 COUGAR AIR-COOLED GUN 50 FT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! COUGAR AIR-COOLED GUN 50 FT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000