The Westbrass Air Gap Kit is a practical plumbing solution designed to prevent backflow contamination in household drain systems. This kit features a durable brass construction with a polished chrome finish, ensuring longevity and resistance to corrosion within your plumbing. Measuring 9 inches in total length, with a 1-1/4 inch diameter at its base and expanding to 1-5/8 inches at the top, it's designed for standard sink setups. The 2-1/4 inch height of the upper portion provides ample space for air gap functionality, while the 1-3/4 inch threaded section allows for secure installation. This air gap is ideal for use with kitchen sinks, dishwashers, and laundry tubs, protecting your potable water supply. It effectively creates a physical separation between your drain and the water supply, preventing wastewater from flowing back into clean water lines. The included standard brass cap adds a touch of refinement and ensures a secure seal when not in use. Its streamlined design integrates seamlessly into most kitchen decors, offering a subtle yet functional addition to your plumbing setup. Ultimately, this kit provides a reliable and code-compliant solution for maintaining water safety in your home..