The Vertical Hermetic Fiber Optic Splicing Closure is a complete set of accessories used for connectin permanently two (or more) fiber optic cables. A closure is installed in a vertical position. Air-tight closure is fulfilled by a rubber sealing washer, which protects the fibre-optic fusion splices against the influence of adverse working conditions. It is an ideal solution for works in the telecommunication manholes and data communication containers. It is possible to install the closure on a wall or on a pole. The packing of the introduced cables is made by means of heat shrink pipes (shrinks).