Delta 9959-DST Single Handle Pull-Down Bar/Prep Faucet, Chrome LASTS 2X LONGER. Patented DIAMOND Seal Technology reduces leak points and lasts twice as long as the industry standardensuring leak-free operation for the life of the kitchen faucet (Industry standard is based on ASME A112.18.1 of 500,000 cycles) MAGNETIC DOCKING. MagnaTite Docking uses a powerful magnet to snap your kitchen sprayer into place so it stays docked and doesnt droop over time like other kitchen faucets EASY INSTALLATION. Designed to fit single-hole or 3-hole, 6-8-in. configurations. For 3-hole installation, purchase deck plate RP64070 separately. InnoFlex PEX supply lines are integrated into the faucet for one less leak point and are conveniently included in the box EASY TO CLEAN. Delta kitchen faucets with Touch-Clean spray holes allow you to quickly and easily wipe away calcium and lime build-up with a touch of a finger, so no need to soak or use chemical cleaners LIFETIME LIMITED WARRANTY. You can install with confidence, knowing this kitchen faucet is backed by Delta Faucet's Lifetime Limited Warranty.Deck Thickness:2.5 inches