R.O. UltraTec’s revolutionary HF5 low-pressure, thin-film, composite commercial membrane elements feature advanced membrane construction that allows for pressures as low as 80 psi. The high-flow elements offer a 98-percent-nominal-salt rejection rate and are available in all four-inch standard sizes. The units reduce operating costs, extend system life and counter the effects of cold water on system production. Contact the company at (760) 723-5417 to locate the nearest authorized distributor.www.roultratec.comsales@roultratec.com