Ro Water Filter System With 5 Stages RO, CTO, Sediment, UDF & Activated Carbon-Under Sink Water Filterreverse Osmosis Water Filtration System Alkaline Remineralization - Healthier pH + WQA Certified 5 stage filtration system to treat faucet water and domestic water Easy to install with strong back frame (mountable), 1 Year Satisfaction Guarantee Thin-film composite semipermeable RO membrane filters down to 0.0001 micron (Human hair-50 microns) Water Quality Association Certified Booster Pump Provided for low pressure environment