Abstract: A telecommunications cable termination box is wall mountable. An interior holds fiber optic splices, fiber optic connectors and adapters, and blown fiber tubes. The interior of the box is sealed. The box has an outer housing and an inner tray. The outer housing includes a hinged cover, snaps for holding the cover to the base, and a seal between the cover and the base, and a tray flange of the tray. Cable slack is managed in the interior to avoid sharp bends of the cables. The cable input ports and output ports are sealed by grommets. Different grommets can be provided depending on the number of cables and the cable sizes. The inner tray can hold gas block seal devices that seal the ends of the blown fiber tubes.