Wavin Osma HepᵥO Self Sealing Waste Valve
Where you need to prevent foul sewer gases from entering a building, HepᵥO can be used as an alternative to conventional water traps. As it doesn’t rely on trapped water to create a seal, HepvO can't fail due to evaporation, movement or siphonage
Videos
An Introduction Video Osma HepᵥO
A quick introduction video to HepᵥO, the world's best selling waterless trap
Installation Guide for Osma HepᵥO
A short video on how to install HepᵥO
Waterless Trap System Overview - OSMA HepᵥO Soil & Waste
An overview of the unique Osma HepᵥO waterless trap. It won’t lose its seals due to siphonage, evaporation, leaking or movement.
Installation Under a Sink
How to install an HepᵥO valve under a sink where space is at a premium