NSF/ANSI 42 & 53 – WINGSOL under sink water filter meets NSF/ANSI 42 & 53 standards, ensuring safe and reliable filtration. Made from food-grade and BPA/lead-free materials, it provides you the highest standards for drinking water safety and quality. Advanced Multi-Layer Filtration – Enjoy cleaner and better-tasting water with this high-performance under sink water filter. Its premium pleated sediment filter and activated carbon block work together to effectively reduce PFAS, PFOA/PFOS, chlorine, heavy metals, nitrate, chemical impurity, sand, and sediment, ensuring fresh water straight from your tap. Engineered for superior filtration, it delivers reliable protection for you and your family. Long-Lasting Performance – Featured by advanced anti-clogged technology, this water filter for sink ensures an extended filter replacement life of up to 8K gallons or 12 months, significantly outlasting many competitors. The innovative filtration system reduces blockages, offering consistent, high-quality performance and saving your money on frequent replacements. Enjoy clean water for longer use with minimal maintenance. High Water Flow – The water filter under sink delivers a rapid 2.5GPM flow rate at 60 psi, providing clean instant drinking water at finger flicking. No more waiting—fill a cup in seconds and enjoy pure, great-tasting water whenever you need it. Easy Installation & Compact Design – The under sink water filter system offers an easy-change filter, quick connection fitting and 1/2"-3/8" converters, taking just 5 minutes to install and fitting USA water lines and valves. Its compact design saves valuable space undersink, making it perfect for homes, offices, RVs, and apartments. Important Note – IT CAN'T REDUCE TDS. TDS is not a professional way to tell the water quality. Essential Minerals (such as Calcium, Potassium, Sodium, Magnesium, ect.) are dissolved solids, constituting TDS. These essential minerals is good for human body. WINGSOL undersink water filtration system is keeping all those minerals while reducing contaminants in the water. If you want to reduce TDS, please choose WINGSOL RO Water Filter System. Filter Replacement - This drinking water filter works with both municipal water and well water (filter life depends on the local water quality, suggesting to replace filter at every 4-6 months for better taste). Replacement filter cartridge is sold on Amazon: model#WS-QCRF-001-1P, ASIN#B09B2D4ZTY or model#WS-QCRF-001-2P, ASIN#B0DPZNQQ83. [Multi-Stage Filter Included]: 0.5um filtration; Reduce bad smell and odor, improve taste; Effectively reduce 99.99% contaminants like Chlorine, Smell, Taste, Odor, Sand, Rust, Sediment, ect; Meet NSF/ANSI 42 standard [Quick Change & Recyclable]: USA-tech, easy change; Easy to use and install; Recyclable housing for money saving; Food-grade, BPA-free; Fit 3/8" and 1/2" feed water valve [Long-Lasting & Cost-Saving]: 8K Gallons/12 Months filter cartridge life, 7 cents/day to enjoy pure water; Fits for US kitchen, bathroom, restaurant, coffee shops, coffee machine, refrigerator and icemaker [High-Flow & Filter Life Indication]: 2.5GPM@60 psi, fill up 1-cup of fresh water in 1.8s, no-waiting and time-saving; Clear see-through housing, easy filter indication [Filter Cartridge Replacement]: Max-12 months for sediment and 5 months for taste, good for both municipal water and well water (Filter cartridge life depends on the local water quality; Suggest to replace every 5-7 months for premium taste), replacement filter cartridge sold on amazon: Model#WS-USRF-001 basic (multi-stage filter, ASIN#B08CVGNXYC) or #WS-USRF-001 advanced (5-in-1 filter, ASIN#B0871YBKVT), ★NOT for reducing TDS★;