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Vacuum adapter crafted from 304 stainless steel, designed to connect a KF (Klein Flange) vacuum line to a component with a BSP male thread, facilitating integration between modular vacuum and threaded systems. Features a KF quick-connect flange on one end for tool-free vacuum line attachment, and a BSP (British Standard Pipe) male thread on the other end for screwing into a corresponding female port. Available in multiple combinations: standard KF sizes (KF16, KF25, KF40, KF50) and various BSP thread sizes. You must specify both the KF size and the BSP thread size you require. The hexagonal body provides wrench flats for easy tightening of the threaded connection, ensuring a secure and leak-resistant seal in vacuum or low-pressure applications. A durable and reusable fitting suitable for creating custom vacuum ports on chambers, pumps, or instruments, or for adapting vacuum lines to threaded gauges and valves.