Say goodbye to cluttered countertops and multiple kitchen gadgets. In a Single-Hole installation, the 4N1 Aqua-System combines all your water needs into a single, stylish fixture, making it the ultimate addition to any kitchen. Enjoy filtered water, instant filtered hot water and standard hot/cold water – all in one. With the stylish 4N1 Smart Faucet on top of the counter, the dynamic duo of our 4N1 Digital Instant Hot Water Dispenser & Ultrafiltration System are the integral components operating under the sink.