Zaoqiang Longtime FRP product Co., Ltd provide the filling filter nozzle. It mostly used for water treatment, drinking water treatment, also apply to beverages, printing and dyeing, swimming pools and other industrial water department, can also be used in industrial wastewater, sewage treatment project.
Our factory can offer all kinds of sand filter nozzle, such as DN15, DN25, DN32……. Material plastic:ABS,PP 
If you have any question, feel free to contact me,My email:ann@longtimefrp.com