The Wavin OsmaT PP Bottle Trap 38mm WT 40 (5V809W) is a durable polypropylene waste bottle trap designed for reliable drainage on washbasins, sinks and sanitary appliances. With a 38 mm connection and robust water seal, this easy‑fit trap prevents odours and ensures smooth wastewater flow in domestic and commercial plumbing systems. Compatible with Osma above‑ground waste pipework, it’s an ideal choice for both new installations and maintenance projects where a compact, efficient trap solution is needed.