DF-4-26DP-2C DF4-26DP-2C DF4-28DP-2C DF4-2P-2C DF4-2P-2R26 DF4-2P-2R28 DF4-2PA-2R26 DF4-2PA-2R28 DF4300N12KOF DF4300N14KOF