3/4" Air Moisture Filter Regulator Oiler Separator Lubricator Combo Auto Drain3 4" Compressed Air Moisture Filter Regulator Oiler Separator Lubricator Combo Auto Drainer Brand new in line compressed air moisture filter, regulator, lubricator combo. This is a high quality unit that gives you the power to keep moisture out of your air lines, regulate air pressure, and lubricate your air lines all at once! This is a perfect set up for when you do not have a lot of room to add all of these components individually. This has 3 4"