WATERRO RO membrane 75 GPD – Model WR-1812-75 WATERRO WR-1812-75 is a high-quality reverse osmosis membrane for domestic drinking water purification systems. The 75 GPD capacity ensures effective reduction of dissolved salts and other contaminants, producing high-quality drinking water. The membrane is compatible with standard 1812/2012 membrane housings and designed for water with TDS up to 1000 ppm. Key advantages 75 GPD capacity Standard 1812 size Suitable for 1812/2012 membrane housings Recommended for water with TDS up to 1000 ppm Suitable for domestic reverse osmosis systems Long service life