The Remke RD16NR-GYNR Dome Cap Cable Gland is constructed from high-quality gray polyamide, designed for cables with a diameter range of .27 to .47 inches. This 1/2" NPT rated gland ensures a secure and weatherproof seal, making it ideal for various electrical applications. Its durable design meets industry standards, providing reliable performance in demanding environments. The dome cap design allows for straightforward installation, making it a preferred choice for professionals looking for effective cable management solutions.