Classic Series. Lever handle, 3-hole 4" centerset installation. Features Diamond Seal Technology for over 5 million trouble-free uses. 3/8" O.D. Pex supply tubes 36" long connections. Includes plastic drain with pop-up type fitting with plated flange and stopper. WaterSense labeled product. Flow rate of 1.5 G.P.M. versus industry standard ASME.A112.18.1/CSA.B125.1 of 1.5 GPM (gallons per minute) flow rate. ADA compliant. Complies with California lead-free law AB1953. Lifetime faucet, parts and finish warranty to the original purchaser.