We advise you to use the viewing moment to get a clear picture of the object described. We therefore recommend that you carry out a careful investigation yourself before making a bid. This device is used in the fire department to add foaming agent to the extinguishing water in the correct proportion. Technical specifications Allowed working pressure: 16 bar Flow rate: 200 l/min Adding rate: 1 - 6 % (adjustable) Brand: Minimax .Product: Party Foam Mixers with Storz coupling .Type: Z 2