Self-Sealing Waterless P Trap 1-1/2", One Way Sanitary HepvO Waste Valve Upgraded Trap Dry Seal Technology Prevent the Backflow of Air & Wastewater Five-Year Warranty

Compatibility:The waterless Wavin trap prevents foul sewer gases from entering a building and is ideal for eliminating odors in applications where fixtures are only used occasionally, such as RVs, guest bathrooms, holiday homes, boats, and mobile homes. It is compatible with kitchen sinks, showers, garbage disposals, washing machines, dishwashers, and more! The waterless HepvO trap can also be installed on discharge pipework from unvented domestic hot water systems and condensate lines from boilers and air conditioning units. It also allows the admittance of air into the waste system and can replace the need for AAV's in branch ventilation.Function:The waterless Wavin trap is a unique self-sealing waste valve that prevents the backflow of air and wastewater into showers and sinks while actively maintaining pressure equilibrium in drainage systems. As a dry-sealing valve, the waterless HepvO trap uses a purpose-designed membrane to create an airtight seal between the living space and the drainage system. The valve in the waterless Wavin trap opens under water pressure when an appliance drains and closes to form a tight seal after discharge, under normal atmospheric conditions. The waterless HepvO trap improves plumbing design efficiency while preventing foul air from escaping into living areas.Dry Seal Technology:The waterless Wavin trap is an innovative, hygienic self-sealing waste valve. Unlike conventional traps, the waterless HepvO trap does not rely on trapped water to create a seal. Water seals are prone to failure due to evaporation, siphoning, or other mechanisms. Instead, the waterless Wavin trap uses a soft silicone rubber membrane that performs the same function as a water seal—but without the risks of depletion or freezing.Space-Saving Design:The waterless HepvO trap can be installed either vertically or horizontally using the 90° adapter, eliminating the need to cut into floors beneath bathtubs and showers to accommodate traditional U-bends. Its streamlined in-line configuration is perfect for tight spaces including pedestal sinks, shower enclosures, bathtubs, and kitchen cabinets. For horizontal installations, use the included knuckle bend 40mm adapter (size-matched to the waterless Wavin trap). For in-line installations, utilize the provided 40mm running adapter.Admits Air:The waterless HepvO trap actively eliminates negative pressure within the waste system by opening and allowing in fresh air until a state of equilibrium with atmosphere is reached. This means that secondary venting of the waste system via the inclusion of air admittance valves in the waste system is no longer necessary.Five-Year Warranty:Each waterless Wavin trap undergoes rigorous testing to ensure long-lasting performance. We also offer a 5-year warranty, so you won't need to worry about the waterless HepvO trap malfunctioning within a few months. If you encounter any issues during use, feel free to reach out to us via email. We promise to provide a satisfactory solution within 12 hours for a worry-free experience.

• ⚠ Compatibility — 1-1/2" Tubular Only (Not NPT): Fits 1-1/2" tubular drain pipe (ASTM F409 DWV) used under U.S. sinks and fixtures. Not compatible with 1-1/2" NPT, IPS, MIP, or Schedule 40 pressure plumbing. For drain/waste applications only, not pressurized lines. If unsure, send us a photo before purchase for quick compatibility confirmation.
• Compatibility: The waterless trap prevents foul sewer gases from entering a building and is ideal for eliminating odors in applications where fixtures are only used occasionally, such as RVs, guest bathrooms, holiday homes, boats, and mobile homes. It is compatible with kitchen sinks, showers, garbage disposals, washing machines, dishwashers, and more! The waterless trap can also be installed on discharge pipework from unvented domestic hot water systems and condensate lines from boilers and air conditioning units. It also allows the admittance of air into the waste system and can replace the need for AAV's in branch ventilation.
• Function: The waterless trap is a unique self-sealing waste valve that prevents the backflow of air and wastewater into showers and sinks while actively maintaining pressure equilibrium in drainage systems. As a dry-sealing valve, it uses a purpose-designed membrane to create an airtight seal between the living space and the drainage system. The valve opens under water pressure when an appliance drains and closes to form a tight seal after discharge, under normal atmospheric conditions. The trap improves plumbing design efficiency while preventing foul air from escaping into living areas.
• Dry Seal Technology: The waterless trap is an innovative, hygienic self-sealing waste valve. Unlike conventional traps, it does not rely on trapped water to create a seal. Water seals are prone to failure due to evaporation, siphoning, or other mechanisms. Instead, the waterless trap uses a soft silicone rubber membrane that performs the same function as a water seal—but without the risks of depletion or freezing.
• Space-Saving Design: The waterless trap can be installed either vertically or horizontally using the 90° adapter, eliminating the need to cut into floors beneath bathtubs and showers to accommodate traditional U-bends. Its streamlined in-line configuration is perfect for tight spaces including pedestal sinks, shower enclosures, bathtubs, and kitchen cabinets. For horizontal installations, use the included knuckle bend 40mm adapter (size-matched to the trap). For in-line installations, utilize the provided 40mm running adapter.
• Admits Air: The waterless trap actively eliminates negative pressure within the waste system by opening and allowing in fresh air until a state of equilibrium with atmosphere is reached. This means that secondary venting of the waste system via the inclusion of air admittance valves in the waste system is no longer necessary.
• Five-Year Warranty: Each waterless trap undergoes rigorous testing to ensure long-lasting performance. We also offer a 5-year warranty, so you won’t need to worry about it malfunctioning within a few months. If you encounter any issues during use, feel free to reach out to us via email. We promise to provide a satisfactory solution within 12 hours for a worry-free experience.