The Aquafer 4 in one beverage system. It's a touch sensor. You wave your hand over to wake it up.There are four types of water. They're all filtered. Room temperature, chilled, sparkling, and instant hot.So, wave it over to wake it up. Touch there to turn it on. Going to touch turn it back off.So, that's the sparkling for the the unit and the faucet together is about $5,300 list price. It's all controlled by that unit underneath the countertop. It's the same CO2 cartridge as a soda stream, so easy to swap t ...