Nozzle inflow bottom with a special locking and adjustment system. Thanks to the lockable option - the piping in the outdoor pool is protected during the winter season. Adjusting the nozzle allows you to control the intensity of water inflow to the pool. Version of nozzle for the foil additionally has two seals and a pressure ring with a set of screws - which it is completely safe and will not tear the foil. Flow 10,5 m3/h.