Reverse osmosis is one of the most prevalent technological methods used for water desalination. This technology uses the selective permeability characteristics of a membrane to allow the passage of liquid while restricting the flow of dissolved ionic substances. Due to the pressure on the impure water, the pure water passes through the membrane, leaving all impurities on the other side. Osus Al-Tatweer designs, manufactures, and installs reverse osmosis systems to fulfill the unique needs of clients, whether for producing pure water from wastewater, low-salinity water, or seawater.