The D-D Reverse Osmosis units come with a metal wall mounting bracket attached to the prefilter pods. This can be used to mount the unit on a wall. Care must be taken that the fixings used and the surface itself is strong enough to take the weight of the unit, as they can be heavy when full of water. It is also worth noting that during operation, due to temperature differences between the mains water supply and the outside air, condensation can form on the unit.