We need to purchase several new recovery machines for general every day use for commericial HVAC service.

Can anyone make a good recommendation for a machine for a service van?

Looking for a portable machine which is dependable and has a high capacity recovery rate. Tried several different types of machines the wholesalers are pushing, but they turn out to be junk w/ low recovery capacities and generate too many compliants from the service mechanics.

We might be looking for something that isn't made, any ideas?