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Upgrades & add-ons convert a basic RO system and make it deluxe by reducing reverse osmosis waste water or adding extra stages.

If you’re looking for a low waste reverse osmosis system, you may be interested in a piggy back kit, which adds an extra membrane to the waste water line for higher efficiency.

Purchase a DI resin cartridge add on to turn your RO system into an RO DI system, or add an additional carbon block stage, like a chloramine removing carbon filter.

When using reverse osmosis, chloramine is a problem because a standard carbon block filter does not remove all chloramine, which can damage your RO membrane and end up in the fish tank. A chloramine removal carbon filter kit will resolve this issue.