Zehnder ComfoSet for round ComfoTube DN75 and DN 90, and for ComfoTube Flat 51. The patented Zehnder ComfoSet system is designed to regulate the flow rate to the Zehnder outlets on first start-up and calibration of the system. Easy and quick to install when the system is finished, with no major work involved - just the removal of the finishing grille. The calibration discs ensure that the desired flow rate is accurately delivered to all the outlets.
