The NL Wilkins 3/4 double check valve assembly is designed for backflow prevention in plumbing systems. This model features female NPT connections for easy installation and is constructed from durable materials to ensure long-lasting performance. It meets ANSI standards, making it suitable for both residential and commercial applications. The double check valve effectively prevents contamination of potable water, ensuring safety and compliance with local regulations. Its compact design allows for installation in tight spaces, making it a reliable choice for effective water management.