Hydranautics CPA (composite polyamide) membrane elements have become the trusted industry standard for high performance, high purity applications. CPA elements are available in both 4-inch and 8-inch diameters by 40-inch long spiral wound configurations as well as smaller diameter and shorter length elements for all high purity applications. CPA membranes provide some of the highest salt rejection rates available - every element on every order for every customer.

Hydranautics also offers Integrated Membrane Solutions (IMS) combining a range of RO, NF, UF and MF membrane technologies to achieve the most comprehensive, effective, low-cost solutions for the industry.