AquaNuTech 4N1 Aqua-System Contemporary Faucet with Hot Water Dispenser and Leak Detector NewThe comprehensive 4N1 Aqua System is designed specifically to provide 4 functions from one faucet. This aqua system provides digitally controlled instant hot water on demand, filtered water on demand, standard cold water, and standard hot water. The contemporary faucet design provides pull down, flow, and spray features, with a flow rate of 1. 5 1. 8 GPM. And the included leak detector prevents disasters before they happen.