A three-stage filter with high quality construction and innovative design, built to the highest quality standards. Easily installed on any tap, above and below the sink, and has a filter replacement indicator and a metal valve for controlling water flow. No electricity is needed to work. Protects you effectively from solid, rust, dirt, sediment, chlorine, heavy metals, microbes, viruses. Consists of a built-in sling and attachments. Need replace in 6 months.