The Thomas & Betts RSB20-12 reducing sealing bushing is engineered to facilitate transitions between conduit sizes, specifically from NC20/NW17 to NC12/NW10. This bushing provides a robust IP67-rated seal, ensuring protection against dust and water ingress. Manufactured from durable Polyamide (Nylon), it's designed for reliable performance in various industrial environments. The operating temperature range of -40 to 150 degrees Celsius makes it suitable for a wide range of applications, including electrical installations and equipment enclosures where conduit size reduction and environmental sealing are required.