... ,water amusement park, seawater, freshwater breed aquatics, industrial water treatment Filter shell made of fiberglass reinforced plastics, including pressure gauge, side ... ². Filtration rate:50 m³/h/m². specification:Dla(mm):1000,1100,1200,1400Helght(mm):1270,1270,1450,1600Inlet&outlet Dla(inch):2 ... .3Welght of sand(kg):500,600,650,800 GOOD SAND FILTER