The SDG 40mm Self Sealing Trap offers a reliable and compact solution for preventing sewer gases from entering indoor spaces. Designed for 40mm pipe systems, its self-sealing mechanism ensures an effective water barrier without complex installation or maintenance. Engineered for durability and consistent performance, this trap is ideal for professional plumbing applications requiring efficient odor control and hygiene. Technical Specification No Dry Seals: Because it doesn't rely on a standing pool of water, the seal won't evaporate if the fixture goes unused (perfect for guest bathrooms or holiday homes when little used) Anti-Gurgle: The membrane prevents the negative air pressure that causes traditional water seals to gurgle and suck dry. Compact Profile: Eliminates the bulky U-bend, allowing for easier installation Maintenance: Features a straight-through bore design that resists blockages from hair or soap buildup Can be installed in a horizontal or vertical position. Complete with 90° Inlet and Straight Compression Adapters. Waterless trap that wont dry out and wont gurgle. Drain cleaning products should not be poured down the Magna Valve.