The Axeon extra low energy HF4 series membranes operate at very low pressure, while still producing high quality water. These membranes operate at less than half the pressure of standard high rejection membranes, and up to 30 percent less pressure than other low energy membranes. These membranes offer reliability, high performance and deliver consistent results. They provide increased production, high rejection rates and extra low energy consumption by operating at low applied pressures. Feature a protective ABS shell. Advanced membrane technology and manufacturing processes ensure high quality and performance. These membranes elements are 100 percent vacuum integrity tested and may also be ordered as individually wet tested. Extra low energy. High flow capacities. Improved system performance. Superior quality and cost savings. Individually vacuum tested. 225 gpd permeate flow rate. 99.00 percent stabilized salt rejection. 100 psig applied pressure. 113 degree F maximum operating temperature. 600 psi maximum operating pressure. 6 gpm maximum feed flow rate. 2-11 pH Range, continuous operation. 1-13 pH Range - short term cleaning (30 minutes). 5 maximum SDI. Less than 1 maximum turbidity. 0 ppm chlorine tolerance. Thin film composite membrane type. Spiral wound configuration. Maximum temperature for continuous operations above pH10 is 95 degree F. 1-year limited warranty.