RO membranes are made from various materials, each offering distinct advantages for water purification. The most common materials include thin-film composite (TFC) and cellulose acetate (CA). TFC membranes, made of synthetic polymer layers, are highly durable and efficient in removing a wide range of impurities, including salts and contaminants. They are resistant to chemicals and operate well in a variety of water conditions. CA membranes, made from plant-derived cellulose, are less expensive but more vulnerable to chlorine and pH fluctuations. Shop Top-Quality RO Membranes for Superior Water Filtration" Polyamide membranes are also used for their excellent rejection rates and chlorine resistance in specific industrial applications.