The Schluter KERDI Seal Pipe Nipple Openings, available in both 1/2" and 3/4" sizes, are essential waterproofing components designed to create secure, watertight seals around pipe penetrations in tiled areas, such as showers and wet rooms. Made from durable KERDI material, these fittings seamlessly integrate with Schluter's KERDI waterproofing system, ensuring reliable moisture protection. Their flexible design allows for quick installation, preventing water infiltration around plumbing fixtures. Suitable for both residential and commercial applications, KERDI Seals enhance the overall integrity of the waterproofing system, safeguarding against mold and water damage.