The design was inspired by a strong presence in nature like that of tree with reaching branches. 1.5 gpm, 5.7 L/min ADA compliant when installed properly Delta Faucet is one of the first in the industry to qualify for the new WaterSense program developed by the EPA for showerheads and handshowers. The majestic appearance of the Linden tree inspired the Linden kitchen faucet - a fresh design that will bring life to any kitchen. This elegant yet approachable faucet brings a delightful personality to the kitchen. Delta"s exclusive DIAMOND Seal Technology uses a valve with a tough diamond coating to bring you a faucet built to last up to five million uses. Plus, it keeps water inside the faucet out of contact with potential metal contaminants. Who knew a faucet could be just as beautiful on the inside? Faucet and Finish Lifetime Limited Warranty