Side mount sand filter 1.Size:18'',21'',25'' 2.Compact and light weight,economic 3.High quality 4.6-way multiport valve Side mount sand filter Maximum Working Pressure:200KPa/28psi/2.0baeFactory testing pressure:300KPa/44psi/3.0barMaximum water temperature:40oC(104oF)Maximum Filtration Velocity:50m3/h/m2Size of silica sand:0.5-0.8mm Technical Data