The Puretec MB Series cartridges can be used with many liquids and are very effective for sediment, rust, sand, silt and algae removal. These cartridges do not impart taste, odour or colour to the liquid being filtered. The polypropylene construction provides superior chemical resistance and is not prone to bacterial attack. The MB Series graded density filter design means that the filter is more dense towards the center of the filter. This increased depth ensures extremely high sediment reduction efficiencies and longer cartridge life.