Ultima Reverse Osmosis propriety water filters can be expensive. But we offer high-quality compatible filters, RO membranes, and cartridges, that work well with Ultima RO systems and can save you money. Basically, the filters cost much less, but provide that same clean, great-tasting drinking water you'd expect. By installing Ultima-compatible reverse osmosis filter replacements and taking care of routine system maintenance yourself, you can save quite a bit of money.

Begin by selecting the image of your Ultima RO system displayed above. This will allow you to add the appropriate filters to your shopping cart. For convenience, consider opting for a "filter kit" which includes all the necessary filters, though it might not be available for every Ultima model. Remember, the RO membrane typically requires replacement every two years, while sediment and carbon filters need changing every 6-12 months based on your water consumption and its quality.

Ultima-compatible reverse osmosis filters and membrane can remove common pollutants from water including sulfates, fluoride, nitrates, lead, pharmaceuticals, pesticides, Arsenic V and more. The under-sink RO system's carbon filter will also remove chloramines and chlorine.

Learn more about what contaminants can be removed with reverse osmosis filtration.