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: Purposefully designed to install in 5 simple steps, with step-by-step instruction videos and tips available on Delta Faucet’s YouTube channel. The 3 hole bathroom faucet fits 3-hole 4 in. centerset installations LEAK-FREE FOR LIFE. DIAMOND Valve, a diamond-embedded ceramic disc, requires no lubrication and eliminates wear on seals, so you can rest assured that this faucet will perform like new for life CORROSION-RESISTANT FINISH: Our Brilliance finishes are intentionally engineered for durability and tested for corrosion resistance to at least 2 times industry standards PROVEN QUALITY: Every Brilliance PVD finish is tested against more than 100 household cleaners, must pass 2,000 cycles of extreme abrasion testing, and is designed to withstand cracking, peeling, chipping, blistering or changing color over time EASY-TO-CLEAN METAL DRAIN: Push pop-up drain unscrews from above the deck for quick removal and easy cleaning of hair and other bathroom sink debris