GUARANTEED QUALITY: Quality is our top priority, so all our bathroom sink faucets are tested and certified, meeting or exceeding industry codes and standards EASY DIY INSTALLATION: Wrench-free, quick-connect hose audibly clicks when water lines are connected properly, ensuring a quality installation to help prevent leaks. The widespread bathroom faucet fits 3-hole 6-16 in widespread installations RELIABLE VALVE: Valve cartridge is tested to last at least 500,000 uses to ensure high performance with less drips and a smooth bathroom faucet handle operation. CORROSION-RESISTANT FINISH: Delta Matte Black faucet finishes are salt fog tested, meaning they withstand a corrosive, chemical solution for over 12 hours, triple the required industry standard, without blistering, cracking or peeling CHEMICAL-RESISTANT SURFACE: Matte Black bathroom faucet surface is tested to withstand 16 hours of exposure to 7 harsh cleaning chemicals without corroding or discoloring.