For connecting a Dishwasher drain to a Reverse Osmosis (RO) or Water Softener drain we recommend using the Twin Inlet #DLA-TAG. It eliminates the need for a Faucet w/Air Gap ($14-40 savings, depending on the faucet type) as well as the need for a Drain Adapter ($6-10 savings, depending on the drain adapter type).
For Water Cooler Installations with RO we recommend using the Sink Mounted Air-Gap #3002 or the Wall Mounted Air-Gap #3001.
Twin Inlet Air Gap Inlet Sizes & Finishes
Dual Inlet Air Gap Finishes