Delta Cassidy Single-Handle Kitchen Sink Faucet with Pull Out Sprayer, Arctic Stainless 4197-AR-DST 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) EASY INSTALLATION. Designed to fit single-hole or 3-hole, 8-in. configurations. For 3-hole installation, purchase deck plate RP71545AR 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