The horizontal coupling is used to connect two or more distribution boxes horizontally.
Fits all ventilation systems: 63 mm, 75 mm and 90 mm
The coupling plugs into the oval socket of the distribution box replacing the 4x63 mm, 3x75 mm or 2x90 mm module.
Connecting a second distribution box horizontally increases the number of available sockets up to 16 (for 63 mm system), 14 (for 75 mm system) or up to 12 (for 90 mm ststem)
The highest airtightness class – ATC1 according to EN 17192, ensures quiet operation and greater energy efficiency