Flow-Rite’s 1-1/2″ 12 UNF by 1-1/2″ Qwik-Lok Adapter with O-Ring from Flow-Rite is a high-quality plumbing fitting designed for use in various marine applications. The adapter is made of durable materials that can withstand harsh marine environments, ensuring long-lasting use. The fitting features a 1-1/2″ 12 UNF threaded female end that attaches to a corresponding male fitting, while the other end is a 1-1/2″ Qwik-Lok connection that allows for easy and secure connection to compatible hoses or tubing. Additionally, the fitting comes with an O-ring to ensure a watertight seal, preventing any leaks or drips. This adapter is a reliable choice for connecting various plumbing components in your marine system.