Our purpose is to empower people to permanently remove contamination from the world's water supply, with affordable drinking water filter systems which are harmless to the environment. Strong demand from USA, UK and Asia. Berkey and British Berkefeld compatible. Our filters are 95% plastic free and compostable. Healthy water for you, your family and the planet. This filter is suitable for use in a gravity system and is compatible with British Berkefeld and Berkey housings. It will not be suitable for piped mains water pressure systems. The Coldstream FTO Plus ceramic water filter is made up of two key components. Our specially formulated and unique ceramic outer layer, which gives maximum protection against bacteria and removes all particles and microplastics. This filter protects against fluoride, heavy metals, chemicals and more.