When it comes to RO Faucets, there are a variety of styles and finishes. You also need to find out whether you need an Air-Gap or Non-Air-Gap faucet. An Air-Gap Faucet is designed to create a physical siphon break from the Reverse Osmosis System itself and the sink drain.

This means the water is dropped from one tube into another through the air. If your sink drain were to become clogged and backed up, the Air-Gap installed in the RO System drain line would pull a small amount of air rather than the dirty water back into the Reverse Osmosis System unit.


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