For Sale: New Old Stock Procon High pressure vein pump. This was made for food service and is rated at 100 gallons per minute at 170 lbs pressure. I purchased three of these for a solar project that didn't work out and have two that have never been used. They are stamped "food service equipment group" so possibly they would be good for sap transfer or for building your own RO. The High pressure will push liquid up a small tube to great hights. A good filter of some kind needs to be added to protect the pump which has close tolerances. The shaft is 3/8' diameter. Inexpensive lovejoy couplings can be used to hook this up to your (reversable) motor. I have a 1/4 motor that would work but shipping would be an issue. Sorry, NO Paypal.