Rotary vane flange bolt pump made by Procon. This pump can pump 180L/H. to connect the water line in and out you need a 3/8" NPT fitting. This pump can only be attached to a motor which has a flange where bolts can be screwed into. It won't work with a clamping style motor. For this type of pump it is always handy to look if you have the right pump to motor connectors. This particular model uses the small square shaft.