Blue Spring Corporation manufactures reverse osmosis water purifiers and reverse osmosis water purification systems based on latest reverse osmosis and electrodeionization technologies for diverse industrial, municipal and environmental applications. Our WFI-EDI series pharmaceutical water systems incorporate the latest double-pass reverse osmosis and EDI technologies to produce high-quality USP Water-for-Injection for pharmaceutical water applications. Our WP-EDI series pharmaceutical water systems incorporate the latest single-pass reverse osmosis and EDI technologies to produce high-quality USP Purified Water pharmaceutical water applications and deionized water applications. The WP-EDI units provide an economical source of high-purity deionized water used in semi-conductor manufacturing. Our WFI-R-EDI and WP-R-EDI models incorporate closed loop output reverse osmosis technology pioneered by Blue Spring Corporation, which is useful in pharmaceutical and medical device manufacturing applications, where biological purity of water is of utmost importance.