The enclosure is made from glass fibre enhanced plastic is durable and resistive to corrosion, rust, low temperature, and UV. Suitable for pools of different shapes and sizes. Selection of system components can be customized to your specific requirements. Timer-controlled automation eliminates the need(s) for manual power-on/off and professional staff for maintenance; when backwash is called for you just need to turn the 6-position multiport valve to clean up the sand filter, which makes it more convenient and environmental-friendly than other filtration devices using filter pockets. The enclosure is water-tight and can drain water automatically. Eliminate the need(s) for building equipment rooms and installation, which saves much labor and time. Simple installation can be completed within hours. The system consists of a subsystem for filtration, hydraulic massage, sanitizing and lighting. Lights will turn on automatically when the cover is open, which makes it suitable for operation in the dim condition. Equipped with salt water chlorinator, the most effective and widely used means for sanitization.