Products tagged with 'unvented system waste fitting'

The Wavin Osma HepVO Waste Running Adaptor 32mm (BV3 WH) provides a hygienic, self‑sealing solution for drainage systems. Its HepVO valve design prevents foul sewer gases from escaping into living spaces, offering reliable odour control for domestic and commercial installations. Ideal for connecting waste outlets to drainage stacks, this white adaptor ensures compliance and safe plumbing performance.