★NSF/ANSI 58 & IAPMO WATER QUALITY PLATINUM SEAL Certified--Our products are testing annually by the UPC(Uniform Plumbing Code Certification) & IAPMO(International Association of Plumbing and Mechanical Officials), certified to remove up to 99. 99% of harmful contaminants that commonly appear in municipal and well water. ★CERTIFICATIONS--The whole product includes all the filters, tanks, tubing and other water-contacting parts are manufactured to comply strictly with FDA (CFR-Parts 174) and NSF/ANSI 58 standard (58 for reverse osmosis systems, 2018) resulting in the coveted IAPMO Water Quality Platinum Seal Certification (Water Quality Association, TW1812-75, 2018). ★BUILT IN BOOSTER PUMP--raises low incoming water pressure (<45 PSI), increasing the system's efficiency and production speed. ★BETTER WATER, HEALTHIER LIFE--Experience clean, safe, good-tasting water every time you turn on the faucet. Enjoy crystal clear ice cubes, fresher tea and coffee, better tasting foods, healthier baby formula – even better than most bottled water. This under sink mounted water filter and water softener removes up to 99% of over 1, 000 contaminants, including lead (removes up to 98% of lead), chlorine, fluoride, arsenic, hormones, asbestos, calcium, sodium, bacteria, giardia, viruses and more. ★HEALTHIER PH+ SAFE DRINKING WATER--The RO membrane removes not only harmful pollutants but also a few helpful minerals. As a result, a standard 5 stage RO system produces slightly acidic water with a pH of 7. 0 or below. ★ALKALINE REMINERALIZATION FILTER--The additional SIXTH stage, which restores healthy minerals and produces a balanced alkalinity, which gives the water a more natural taste and healthier pH than regular 5 stages RO water. ★LEAK-FREE INSTALLATION--with the high quality industry stand lead-free quick connector, you can simply push tubing ½ inch deep into quick-fitting connectors and lock in seconds - no threading pipes needed.