Proper maintenance will ensure your membrane lasts 5-10 years. The life a membrane is directly dependent on how well it is cared for, which is why our many of our systems include automatic fresh water flushing. Keeping the membrane clean and stored in fresh water during voyages can add years to the service life of any membrane. Proper long term storage, or pickling, is also important for longevity. A well maintained reverse osmosis membrane can easily last 5 to 6 years, we have some customers with membranes that are well over 10 years old.