Surface-mounted housing 3-way Berker K.1 polar white, glossy - with cable and duct entry - entry possible at the top, bottom and in the middle of each side - for horizontal installation - suitable for installation on flammable surfaces - installation depth 36 mm For suitable pipe entries and replacements for cable and duct entries, see the dry surface-mounted range. The surface-mounted housings can be used to use flush-mounted devices for surface-mounted installation.