The iSpring RO500AK-UV has a four-stage water filtration system that removes up to 99% of over 1,000 contaminants, including lead (up to 98%), chlorine, fluoride, arsenic, asbestos, calcium, and sodium. It features a 2-in-1 sediment and carbon block filter, an advanced RO membrane, and a carbon alkaline filter that balances pH levels and enhances taste. Furthermore, theRO system features an LED UV light that can filter up to 99.9% of contaminants and has a lifespan of up to 7000 hours.