The washer 173 is available in 2 types, the 173A and 173D. This compact machine is the entry level automatic washer that effectively washes guns inside and outside.
The unit is fitted with a diaphragm pump that takes solvent from a drum located in the base of the machine to provide high pressure washing through spray nozzles. It can also be used for manual washing.
The models are both similar, but the model 173D includes a venturi pump for feeding clean thinner.