Lincoln K and KP Numbers › Lincoln Electric KP1976-1 GUIDE TUBE EXTENSION, 120-1/8 Lincoln Electric KP1976-1 GUIDE TUBE EXTENSION, 120-1/8 Sale Price: $73.70 Original Price: $82.54 GUIDE TUBE EXTENSION, 120-1/8 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! GUIDE TUBE EXTENSION, 120-1/8 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000