This listing includes 1 KF-16, KF-25, KF-40, and KF-50 Aluminum Vacuum Clamp with Center Ring Set, designed for maximum compatibility and performance in vacuum applications. Key Benefits: - Versatile Compatibility : Fits various KF flange sizes, making it suitable for many systems, ensuring you always have the right clamp at hand. - Durable Material : Constructed from high-quality aluminum, offering strength and resistance to wear, providing long-lasting reliability in your vacuum setups. - Enhanced Sealing : The included center ring ensures a tight seal, minimizing leaks and maintaining the efficiency of your vacuum system. Applications: - Research Laboratories : Ideal for experimental setups requiring airtight connections for vacuum chambers and other equipment. - Manufacturing Processes : Provides dependable sealing in the production of sensitive components, where maintaining atmosphere integrity is crucial. - HVAC Systems : Used to create secure connections in installations, preventing air leaks and enhancing system efficiency. This aluminum vacuum clamp set stands out for its robust construction and user-friendly design, making it an essential addition to your toolkit for reliable and precise vacuum management.