Lincoln K and KP Numbers › Lincoln Electric KP4378-22 GUN TUBE 22 DEGREE WC Lincoln Electric KP4378-22 GUN TUBE 22 DEGREE WC Sale Price: $2,208.64 Original Price: $2,473.68 GUN TUBE 22 DEGREE WC PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! GUN TUBE 22 DEGREE WC PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000