The VG-D 1L is an oil mist separator / Aerosol filter with a disposable cartridge without valves. The adsorber is suitable for indoor & outdoor and has FKM seals. It is filled with 0,1kg activated carbon to adsorb oil mist and pollutants. A silica gel layer on the bottom indicates by colour change to brown that the cartridge must be replaced. With the G3/4″m connection, this product is suitable for use on barrels (60 ltr.).