Flush-mounted empty floor housing with hinged lid made of die-cast aluminum Features: Empty floor housing for installing flush-mounted devices with support ring fastening from the areas of installation and communication technology (e.g. sockets, sockets with solid plate, TAE connection boxes, etc.). For complete units, the housings can be arranged in series on all sides using connecting clips on the back. Notes: When installing in the floor, the pre-formed recess in the lower part must be used to ensure that any water that may penetrate can drain away.