A coupling for connecting two or more distribution boxes vertically.
Fits both ventilation systems: 75 mm and 90 mm. The coupling plugs into the central slot of the distribution box
Connecting a second distribution box vertically increases the number of available sockets up to 24 (for 63 mm system), 20 (for 75 mm system) or up to 16 (for 90 mm system)
The coupling is equipped with finger loops for easy installation in the distribution box.
The highest airtightness class â ATC1 according to EN 17192, ensures quiet operation and greater energy efficiency
