Assembles onto 4x4, 6x4, 12x4, or 24x4 FiberRunner®Channel, spilling over the side into a 4x4 vertical exit. Requires coupler to attach 4x4 FiberRunner®Channel and fittings to the vertical exit. Mounts directly to existing installation with no alteration required. Mounting hardware provided for secure attachment. .. 查看完整描述