PureDrop RTW5 Under Sink 5 Stage Reverse Osmosis Drinking Water Filtration System with Extra Pre-Filter SetCrystal clear fresh tasting drinking water Our 5 stage filtration system ensures the quality of your daily drinking water by rejecting up to 99% of contaminants including arsenic, chlorine, fluoride, lead, fluoride, heavy metals, bacteria, viruses, etc. Substantially reduced cost Supplies up to 50 Gal. of drinking water per day without any electricity use Efficient production Generates 1 Gal. of drinking water from less than 3 Gal. of tap water,