Kitchen Sink Faucet Adapter The Kitchen Sink Faucet Adapter connects an RO or RO/DI unit to most standard kitchen faucets for convenient temporary source-water access. Faucet Adapter for RO Units This adapter is useful when an RO/DI system needs to be connected at a sink instead of being permanently plumbed into a supply line. It comes complete with a diverter for simple faucet-based operation. Compatibility Notes Attaches to most standard kitchen faucets. Comes complete with diverter. Not recommended for spray or specialty sink hardware. Useful for temporary RO/DI hookups and portable water-filter setups. Directions Attach the adapter securely to a compatible faucet connection, connect the RO unit feed line and turn on the water slowly. Check for leaks before running the RO/DI unit, and disconnect after use if the setup is temporary. What's Included 1 Kitchen Sink Faucet Adapter with diverter.