RO membranes are essential components in reverse osmosis systems, impacting both price and performance. Several factors influence their cost and efficiency, including membrane material, pore size, and capacity. High-quality membranes, such as those made from polyamide thin-film composites, typically cost more but offer better performance in removing impurities. Larger capacity membranes, such as those used in industrial RO plants, are also priced higher. Other considerations include the membrane's lifespan, resistance to fouling, and specific application (e.g., commercial, industrial, or residential). Regular maintenance and proper care can optimize performance and extend the membrane’s service life, offering long-term value.