The CUCKOO CP-U011W Water Purifier delivers fresh, filtered room-temperature water through an advanced 3-layer filtration system. Its compact profile, status indicators, and child lock feature provide a safe, convenient, and modern water purification solution for everyday living ,and is made in Korea.Advanced Nano Filtration Technology with a 3-Layer Filtration SystemProvides clean, fresh-tasting filtered water through an advanced 3-layer filtration system designed for everyday use WQA CertifiedNSF 372 Certified for lead-free materials Economical & Eco-Friendly PurificationElectrostatic-powered filters help deliver efficient filtration while supporting more economical and eco-conscious water usage Tankless Direct PurificationFreshly filters water on demand—no stored water, no bulky tank, and less worry about stagnant water. Safe Convenient DesignFeatures a child lock function to help prevent accidental operation, plus a tap water lock valve for safer and easier filter replacement Modern Space-Saving StyleDesigned with a slim, stylish body that naturally blends into modern kitchens and living spaces, along with status indicator lights for intuitive everyday use 🟩 Self-Installation Kit Components 9/16" T-Valve Adapter Faucet Diverter Change Connectors (Ø18.5 / Ø19.15 / Ø20.2) Fitting Assembly, Fitting Clip, Cable Tie, Fix Wire, Installation Guide 🟩 Self-Installation & Filter Replacement Videos : Step-by-Step Guide How to Install Your Tankless Nano Filtration Water Purifier >> How to Replace Filters on Your Tankless Nano Filtration Water Purifier >> 🟩 Recommended Filter Replacement CycleThe recommended filter replacement cycles are based on an estimated household water usage of 10 liters per day. Actual replacement intervals may vary depending on water quality, usage patterns, and the user's environment. Sediment 3.0 Filter : 4 month Carbon composite Filter : 4 month Nano Positive Plus 3.0 Filter : 8 month