Lincoln K and KP Numbers › Lincoln Electric KP5366-1-B25 HDT W/C GAS DIFFUSER Lincoln Electric KP5366-1-B25 HDT W/C GAS DIFFUSER Sale Price: $365.63 Original Price: $409.50 HDT W/C GAS DIFFUSER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25.000 Add To Cart Added! HDT W/C GAS DIFFUSER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25.000