014 1045 B00 Pressure regulator with gauge subgroup Vetpistolen it allows to collect all it allows to collect all the grease from the inner walls down to the bottom of the drum To optimize the efficiency and the live time of our air operated pumps we recommend to use filtered and lubricated air In order to optimize the efficiency and the life time of your air operated equipment we recommend to use condensate and particle free air at the correct pressure and lubricated