Engineered to last wash after wash, Zurn's AquaSpec Deck-Mount Manual Sierra Faucets are made to endure in busy commercial restrooms. Constructed of a durable, lead-free cast brass body, AquaSpec faucet valves contain a unique, heavy-duty quarter-turn ceramic disc cartridge. The cartridge is so durable, you can expect it to last up to one million cycles… and it's backed by our limited lifetime warranty. The Z7440-XL line features a 4-inch center-set lavatory faucet with a metal lever handle in a highly polished chrome-plated finish. Flow rates range from a water-conserving 0.35 gpm to a standard 2.2 gpm with aerated, spray, pressure-compensating spray, or laminar flow aerator outlets. With its durability and customizable options, the Z7440-XL is a long-lasting choice for any commercial bathroom.