Products tagged with 'self‑sealing valve'

The Wavin Osma HepVO Waste Tundish Adaptor Kit 32mm (BV1/21 WH) is a hygienic, self‑sealing waste solution designed to stop foul sewer gases escaping into living spaces. Ideal for use with unvented hot water systems, this white HepVO adaptor kit connects the tundish outlet to the drainage stack, delivering reliable odour control and compliant discharge performance for domestic and commercial plumbing installs.