Genuine Axeon NF4-4014 RO membrane offers reliability, high performance, and consistent results for commercial applications. The NF4 reverse osmosis membrane provides high flow performance that includes a 90% average ion rejection with an applied pressure of 70 psi. AXEON membranes are compliant with FDA standards, suitable for industrial and sanitary applications. All membranes are shipped dry for indefinite shelf life, are 100% vacuum integrity tested, and can also be ordered as individually wet tested.