Products tagged with 'self‑sealing sewage valve'

The Wavin Osma HepVO 87.5° Waste Knuckle Adaptor 32mm (BV11 WH) delivers a reliable, hygienic connection for drainage systems. Featuring the self‑sealing HepVO valve, this white knuckle adaptor prevents the escape of foul sewage gases into living spaces, ensuring compliant and odour‑free performance for domestic and commercial plumbing installations.