ProEco Pirouette Display Fountain Nozzle Aquascape The optional air blower agitates

The optional air blower agitates the media inside the filter prior to back-flushing

This helps prevent dock pilings from damage caused by ice expansion and pressure damage

and block foam filter

) and improves dissolved oxygen levels

ProEco Pirouette Display Fountain Nozzle Aquascape The optional air blower agitatesProEco produces a wide array of fountain nozzles. The brass N113 Pirouette Nozzle is available with 1 2", 3 4", 1" or 1. 5" FNPT inlet. The chart above shows the pump specs needed to produce desired display height. For example, to get a 3' display height with a 1" nozzle, you need a pump that produces 5gpm (300gph) at 4' of head.