Fiber Dome Closure, 288 Single Fusion Splice CapacityAdditional FB25 3401STP36 splice trays sold separately. Description Fiber Dome Closure, 288 Splice Capacity Compatible with Splice Tray FB25 3401STP36 The FB23 4381 288DE dome splice closure is designed for above or below grade applications and supports up to 6 or more cable entries. The closure has a unique gasketed Split End Plate system that allows for mid accessing cable up to 1. 125" in diameter. Branch or lateral cables can be added to any one