Prevex – all about water traps. With over 60 years of experience, Prevex is a leading supplier of water traps for the kitchen and bathroom industries. We develop, design and produce water traps and related products for manufacturers, distributors and retailers. Ideal R&D partner. As one of very few companies globally specializing exclusively in water traps, we are an ideal R&D partner for long-lasting co-creation. This, we believe, explains why some of the most progressive kitchen and bathroom design companies in the world have chosen to work with us, and why prospective customers see us as the preferred option. Our roots are in Finland. Prevex water traps are manufactured in Finland, a land known for its clean water and ambitious sustainability goals. Our products are exported to Central, Eastern, and Northern Europe. Part of KWH Group. Prevex is part the KWH Group, one of the largest family-owned industrial companies in Finland. Founded in 1929, the KWH Group is a well-established and financially solid company specialising in global niche markets. The KWH Group has always prioritised long-term commitment over short-term profits, which makes Prevex an ideal partner for customers wishing to engage in deep and long-lasting co-operation.