I have an RO system under my kitchen sink, and just found out that I need a compatible faucet so that particles aren't leaching in from the pipes of the faucet. I previously had a Franke Instant Hot/Cold faucet, which I now find out was not compatible.

I would appreciate recommendations for another Hot/Cold faucet, but that is not super expensive, and/or a Cold only faucet. I also need it to be available in Brushed or Satin Nickel finish.

Thank you for the help.