Dafi Polypropylene Water Filter 25 Microns The DAFI polypropylene cartridge for drinking water is designed for mechanical filtration. It involves the removal of: sand sediments, oily suspensions, contaminants from corroded pipes. Mechanical filtration with a polypropylene cartridge is one of the most important, as it removes the most common dirt and sediment. It is also performed in older installations where pipes may have corroded. It should also be performed before carbon and ion exchange resin filtration. The polypropylene cartridge is very efficient, purifying water up to 30 liters per minute. It is recommended to replace it every six months. Parameters: Brand: Dafi Application: Water filtration Time of use: Up to 3 months (depending on water quality and type of contaminants) Filtration level: 25 microns Efficiency: Up to 30 l/min Operating temperature: 2 - 30 degrees