Multigrade Filters

These filters are used for removal of turbidity and suspended solids, clour, odour and smell. Multigrade filter can filter up to 10-20 micron size. The filter bed is specially designed to have different layers of under-bed and filter media. The advantages offered by these filters are higher filtration rates (15-30 MtrsHour) as compared to conventional pressure sand filters (8-12 MtrsHour) and higher dirt holding capacity besides better filtered water quality.