The bottom nozzle can be equipped with a stainless steel grid. The nozzle is made of white ABS, the flow rate can be adjusted from 0-100%, it is intended for installation in the bottom of the pool. It is a concrete model. Flow capacity 14m3/h, connection with glue 50mm or 2´. The nozzle does not contain seals or flanges , it is intended for concrete pools with a waterproofing coating without foil. Connection in the back either with an external thread of 2" or with an internal glue of 50 mm.