Delta 15999-DST Features: Covered under Delta's limited lifetime faucet & finish warranty for residential and 5 year limited commercial warranty All-brass faucet construction Superior finishing process – faucet finish covered under lifetime warranty Smooth single handle operation Includes cover plate (escutcheon) for sinks with 3-holes (4" centers) ADA compliant Low lead compliant – complies with federal and state regulations for lead content Designed to easily connect to standard U.S. plumbing supply bibs Extra secure mounting assembly All necessary mounting hardware included Delta 15999-DST Technologies / Benefits: DIAMOND™ Seal Technology: Delta® DIAMOND Seal Technology utilizes a ceramic disc valve with a real diamond coating to produce a faucet that will last up to five million uses. That's twice as long as the industry standard, guaranteeing a lifetime of leak-free, trouble-free performance. Delta Innoflex PEX supply lines are included with DIAMOND Seal faucets, so everything you need is in one box. Eco Friendly: As a company that delivers water every day through millions of faucets worldwide, Delta is committed to sustainability and providing smart water delivery solutions that maximize water savings without sacrificing comfort and convenience. Delta Eco Friendly bathroom faucets use a variety of technologies to reduce water consumption including an aerated 1.2 or 1.5 GPM flow vs. the industry standard of 2.2 GPM. Delta 15999-DST Specifications: Overall Height: 9" (measured from counter top to highest point of faucet) Spout Height: 4-5/8" (measured from counter top to faucet outlet) Spout Reach: 5-1/2" (measured from center of faucet base to center of faucet outlet) Number of Installation Holes Required: Single Hole 1.2 gallons-per-minute flow rate Installs onto decks up to 2-1/8" Variations: 15999-DST: this model 25999LF: centerset version of this model 35999LF: widespread version of this model