The Top Assembly Bonnets designed for Anti-Siphon #1-B-1 by Braxton Harris are essential components for maintaining optimal performance in plumbing systems. These bonnets are crafted from high-quality materials to ensure durability and reliability. They are specifically designed to fit the Anti-Siphon model, providing a secure and leak-free connection. Ideal for use in various plumbing applications, these bonnets help prevent backflow and maintain system integrity. Upgrade your plumbing setup with these reliable top assembly bonnets.