The 200L Atmospheric Tank is intended to be sold as an accessry to the BB50 Bag In Box filler. If you will install a filter station before the filler, it is recommended to install a buffer tank in between the filter and the filler. Two options are available: the Atmospheric Tank and the Isobaric Tank. The Isobaric Tank is a more professional 100L automatic buffer tank that uses nitrogen to push liquid into the filler. With this configuration, the BB50 will not include the pump, and the control panel will have an automatic program to set the pressure used during filling or washing.