Self priming hand pump, easy and smooth to operate. Simple to install- Pump fits a sink with a 32mm mounting hole - 12mm hose clamps to base - Extends 115mm above the bench top - Spout extends 130mm from the centreline of the pump - Maximum bench thickness is 30mm - The distance from the bench top, to the bottom of the hose barb is 200mm (Allow another 30mm if an elbow is to be fitted)