Multi-grade filter has four different media for filtration. Other than filtering sand, more porous media are utilized for filtration.

Because of their better porosity, anthracite, fine & coarse sands are used as the primary filtering media. The outlet of multi-grade filter can give less than 0.1 NTU turbidity. As well we provide customize solutions for mechanical filtration areas.

Carbon filtering is a method of filtering that uses a bed of activated carbon to remove contaminants and impurities, using chemical adsorption. It is commonly used for water decoturization / deodorisation, TOC reduction and chlorine removal.