The T&S Brass B-KF is a protective flange designed for seamless integration in various applications. It fits a 1-9/16" hole and accommodates sheet metal thicknesses up to 0.100". This flange is specifically engineered for use with B-0101 and B-0101-A models, making it ideal for setups requiring a disappearing hose arrangement. Its durable construction ensures reliable performance and longevity in demanding environments.