Who we are

KLT Filtration Ltd manufacture Coldstream water filters and purifiers and is the result of over three years of product development supported by more than two decades of experience in ceramics technology. The end product is a truly innovative range of high-performance ceramic water filters.

The Coldstream brand offers a comprehensive range of high performance water filters to suit the increasing worldwide demand for cleaner, better tasting water. We make a selection of models to fit all leading systems currently available, including our own range of above or below the counter systems and off grid units.


Based in the UK at King’s Lynn in Norfolk, our products are distributed worldwide from our manufacturing facility which uses pioneering production methods to ensure the highest quality product at a competitive price. Our ceramic filtration units are environmentally friendly and benefit from an exceptionally low carbon footprint because our factory is powered entirely by green energy, making use of our own solar farm and wind turbine. We constantly strive to make our manufacturing techniques as energy efficient as possible.