The one that WCW has (yellow) has a very strong built in handle. Disadvantage is that it holds 2 litres less water and has only one speed pump but can be controlled by fitting a flow valve regulator to overcome this problem. Advantage is there's less to go wrong. Keep It Simple Stupid. It is the bare minimum needed to allow those awkward jobs that can't be done with a vanmount to be completed easily with this hand held sprayer unit.