IMPORTANT: The Sink Drain is NOT Included, if you need a without overflow Sink Drain, please search ASIN: B079DMWG8K, (Overflow ASIN: B07RLLCV3P). Once the supply lines are connected, you need to remove the aerator from the faucet. Slowly turn on the water and check all the connections for leaks. Let the water run for a few minutes to clear the lines, then turn off the faucet and replace the aerator. cUPC NSF CERTIFIED: This black bathroom faucet meets U.S. and Canada high quality standard (Uniform Plumbing Code), certified by IAPMO. Faucet body is made from premium grade LEAD-FREE BRASS (with less than 0.25% lead content), complied with NSF/AB1953 lead-free regulation and safe for drinking water. PREMIUM SUPPLY HOSES: Hoses come with nylon braided exterior protects against chemical corrosion (commonly caused by detergent) and rusting. Inner tubing is made from PEX, safe for drinking water. With standard 9/16-24 UNEF connectors (of course, made from lead-free brass, drinking water safe again!), you can easily connect our hoses with your stop valves. Our supply hoses have million dollars global insurance coverage. SUPERIOR AERATOR: KES multi-mesh aerator creates a perfect aerated stream, and you can easily remove and clean the aerator. Flow Rate: 2.2 GPM (8.3 L/min) at 60 PSI. The package comes with an extra aerator that has a flow rate of 1.2 GPM, 4.5 L/min at 60 PSI, which is compliant with California water efficiency regulations. This extra aerator must be used to replace the preassembled aerator if used in California. 2 or 3-HOLE INSTALLATION: Inlet hole distance is standard 4 inches. Spout height is 3.4" (87mm), spout reach is 5.75" (146mm). Max. deck thickness is 1.18" (30mm). Fast and easy installation. Faucet drops in from top. Quick spin nuts secure faucet in place.