Lincoln K and KP Numbers › Lincoln Electric KP4481-2-HD-B25 HD HYPERFILL W/C GAS DIFFUSER Lincoln Electric KP4481-2-HD-B25 HD HYPERFILL W/C GAS DIFFUSER Sale Price: $462.95 Original Price: $518.50 HD HYPERFILL W/C GAS DIFFUSER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25.000 Add To Cart Added! HD HYPERFILL W/C GAS DIFFUSER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25.000