EcoWater Compatible Filters and Membranes

Find the right replacement filters and membranes for your EcoWater reverse osmosis system. We carry compatible pre-filters, post-filters, and RO membranes for the full range of ERO models.

ERO-375/385

ERO-350

ERO-175

ERO-335

Every EcoWater system uses a three-stage filtration process to turn your tap water into clean drinking water.

The pre-filter is the first line of defense. It catches sediment, dirt, and chlorine before they reach the membrane. This protects the membrane from premature wear and keeps the system running efficiently.

Water then passes through the reverse osmosis membrane, where pressure forces it through a semi-permeable barrier. The membrane rejects dissolved solids, heavy metals, and a wide range of contaminants, flushing them to the drain.

The post-filter handles the final step. It polishes taste and removes any remaining odor before water reaches the faucet. Filtered water is stored in the tank under your sink until you need it.

How EcoWater Reverse Osmosis Filters Work

Why Choose Compatible EcoWater ERO Filters

  • Clean, great-tasting drinking water straight from the tap

  • Reduces contaminants like lead, chlorine, fluoride, and dissolved solids

  • Saves money compared to buying bottled water

  • Made in the USA

  • Ships fast with UPS tracking on every order

  • 100% satisfaction guarantee on all filters and membranes

When to Replace Your EcoWater Filters

When to get a replacement filter varies slightly by model, but the general rule is simple: pre-filters every 6-12 months, post-filters every 12 months, and membranes every 2-3 years.

Never Miss a Filter Change

Waiting too long to swap your filters puts unnecessary strain on the membrane and reduces your drinking water quality. Our AutoShip program delivers replacement filters on a schedule that matches your system's needs, so you never have to think about it.