The Wavin Osma HepVO Waste Valve 32mm (BV1 WH) is a hygienic, self‑sealing waste solution that stops foul sewer gases entering the living space. Designed as a waterless trap alternative for drainage systems, this white HepVO valve delivers reliable odour prevention and flexible installation under basins, sinks, showers or hot water discharge lines.
The Wavin Osma HepVO Waste Valve 40mm (CV1 WH) is a hygienic, self‑sealing valve designed to prevent foul sewer gases from entering living spaces. Ideal for domestic and commercial drainage systems, this white HepVO valve provides reliable odour control and compliant waste connection performance.
The Viva 1½″ Magna Self‑Sealing Waste Valve WTSTC40 is a versatile non‑return waste valve with an internal membrane that allows water to discharge and then automatically seals to block foul smells and gases. Ideal for installation under sinks, basins, baths, bidets or urinals, it includes 90° inlet and straight compression adapters and can be fitted vertically or horizontally.