Residential RO Membrane: 99% Salt Rejection, Trusted by 18M Homes

High-performance residential reverse osmosis membranes serve as the critical core for modern household water purification systems, under-sink drinking units, and whole-house safety configurations. Since its establishment in 2005, Hangzhou Haina Environmental Protection Technology Co., Ltd. has evolved into a premier national high-tech enterprise specializing in the comprehensive research, development, and precise manufacturing of advanced membrane separation solutions. Strategically operating a massive production footprint near the historic Liangzhu Ancient City Site, our state-of-the-art manufacturing facilities utilize cutting-edge automated flat sheet technology to maintain strict production standards while optimizing filtration performance and water flux. With an impressive annual output capacity of 18 million household membrane elements, we efficiently cater to the rapidly expanding global demand for dependable clean water solutions. Every single residential membrane element undergoes rigorous quality assurance testing and compliance checks to meet rigorous international benchmarks, holding prestigious ISO 9001 and ISO 14001 certifications alongside strict NSF and RoHS compliance. Our steadfast dedication to continuous innovation, technological advancement, and customer-centric service has enabled us to forge strategic supply partnerships with Fortune 500 companies while developing over 200 distinct membrane specifications customized for diverse residential, commercial, and industrial applications. As we strive to make global water supplies clearer and purer, our core corporate mission is to deliver exceptionally efficient, reliable, and safe water purification solutions for households everywhere, solidifying our leadership position in the global membrane sector.