Klutch Air Compressor Filter Regulator Combo features a 1-piece space-saving design. The 40-micron sintered bronze filter element can be cleaned and never needs to be replaced. Aluminum body. Polycarbonate bowl is protected from breakage by steel bowl guard. Red Band alert indicates regulator in unlocked position. Semiautomatic nighttime drain ensures filter is drained when compressor is shut down. Includes mechanical air pressure gauge and mounting bracket.