would not be strong enough.
Our 100psi booster pumps only work on RO's upto 500GPD's.
Its nothing to do with 'strength' of a pump. 100 PSI is what he needs. Its down to waterflow of the pump.
Indeed your model for upto 500 GPD membranes is a small low flow pump,albeit with high pressure.
Your other model (Part No: 25110056) looks the bizz, but only has a low pressure? 45 (ish) PSI i make it?