KF40-3-core, 4-coreThrough-the-wall glass sintered vacuum-sealed connectorThe base features a standard KF flange, with identical dimensions. Different-sized connection seats are designed between the blind plates, with the size of the connection seats determined by the number of cores. The connection methods include threaded connections, push-pull connections, and snap-fit connections. The manufacturing processes vary, as do the materials used, leading to different cost structures. It is recommended that customers communicate with the manufacturer before making a selection, choosing products that offer good value for money based on their specific needs. Our company offers a wide variety of models, providing ample room for customer choice.