Features: 1) Advanced internal structure design 2) Straight-through and reserved fibers with protective coat can be winded into fiber holding tray easily and neatly 3) Easy to re-enter, it never requires re-entry tool kit 4) The closure is spacious enough for winding and storing fibers 5) Fiber optic splice trays (FOST) are designed in slide-in-lock and its opening angle is above 90 degrees. The curved diameter meets international standards 6) Easy and fast to increase and reduce FOST 7) Innovative elastic integrated seal fitting 8) All of the above features make it more easy and convenient for installation, maintenance and reuse 9) Vertical type 10) Hoop is used to fix and seal FOSC cover and base, and its installation is quite simple 11) GPJ-S is provided with 6 fiber cable entry / exit ports and sealing is achieved by tightening nut after inserting fiber cable