Gopani’s RO Protect Ultra is manufactured using high quality polypropylene fiber. The cartridge filter variant is engineered to ensure a broad chemical compatibility and thermal compatibility. The Polypropylene melt blown cartridge filter is the perfect choice for pre-filtration processes in RO plants, desalination and waste water treatment. It is a popular choice of variant for pre-filtration processes to protect downstream equipment and increase the service life of these equipment. An amazing value for money product.