These faucets use up to 30% less water than the industry standard 2.2 GPM models while surpassing strict guidelines when it comes to performance. You can help reduce your water bill and feel good about your roll in conservation with these environmentally responsible faucets from Grohe. Product Specifications: Overall Height: 4-1/4" (measured from counter top to the highest part of the faucet) Spout Height: 4-1/4" (measured from the counter top to the spout outlet) Spout Reach: 3-9/16" (measured from the center of the faucet base to the center of the spout outlet) Installation Type: Widespread Number of Holes Required for Installation: 3 Faucet Centers (Distance Between Handle Installation Holes: 5-1/2"-13-3/8" (Adjustable) Flow Rate: 1.5 GPM (gallons-per-minute) Maximum Deck Thickness: 1-3/16" 2 handles included with faucet.