Osma HepvO Waterless trap - The Science of Drainage

For situations where conventional water traps are likely to dry out or where space is limited, OSMA created a revolutionary solution… and one which the plumbing industry had never seen before. HepVO. The world’s first waterless trap. The specially developed silicone membrane opens when water flows through… then self-seals to prevent foul smelling odours coming back up the pipe. The sleek design can be easily fitted vertically… or horizontally in tight spaces. It never dries out or gurgles… and won’t let you down. HepVO from OSMA, The world’s best-selling waterless trap and the only one awarded a BS Kitemark. OSMA. The science of drainage.