... .quartz sand filter device 2.necessary in water treatment system water treatment systemDescription:1. Model: SYS-8 2. Diameter: 800mm Height: ... stainless steel (Food grade)—Made in china. 4. Components: Water distributor, water gather, pressure gauge, filter material, valves and so on. 5 ... volume:8m³/h9. The filter is equipped with back wash system and user shall connect the pump with each filter and ...