In this product an adjustment rod made of polypropylene replaces the metal components of a conventional drain plug. Thus, undesired changes in the set height, oxidation and, to a large extent, cracks are prevented. The plug is adjust-ed by a simple push on the body. It features an anti-theft device at its lower part. An NBR membrane ensures resiliency and very good sealing properties. The cover is available in different interchangeable materials and sizes.