The Evolution Aqua Detox Dechlorinator is a quick and simple method of filtering out harmful chlorine and other impurities from tap water. It is ideal for first fill water changes and top-ups for both ponds and aquariums.Theres no need to wait for chlorine to gas-off or to use liquid treatments. Simply fill up straight from the hosepipe via the Evolution Aqua Detox Dechlorinator. This unit simply connects to garden hose or rigid pipe work. Connectors are included. Hi-grade activated carbon removes chlorine chloramine bromine malachite green dyes colours humic acids organics proteins antibiotics hormones and ozone. Quick and simple to use high capacity pre-washed carbon100% fish safe extremely high toxin removal rate two sizes available connectors included deal for first fills.