Pre-filters and membranes are key components in water filtration systems, especially in marine, RV, and off-grid setups. Pre-filters remove larger particles like dirt and sediment, protecting the main filter and prolonging the lifespan of delicate membranes. Membranes, commonly used in reverse osmosis (RO) systems, filter out contaminants such as salts, bacteria, and heavy metals, producing clean drinking water. Both components are crucial for maintaining water quality, with pre-filters preventing clogging and membranes ensuring efficient filtration. Regular maintenance and timely replacement of both are essential for optimal system performance and consistent water production.