Zehnder Attenuator, CSI, Dia 200 mm, Length 700 mm VPP10315 These units work on a

These units work on a calendar timer basis and simply changing the filters will still present the same issue as the heat recovery unit has to be told by the user when the filters have been changed

Aluminium grease filter and long life filter included

Both gauges on the PVR are equipped with a set point indicator to monitor for pressure or vacuum losses

over a single shoulder via the optional padded shoulder strap (sold separately)

Includes pack of 3 x 72” hoses

Zehnder Attenuator, CSI, Dia 200 mm, Length 700 mm VPP10315 These units work on aComfoSilence rigid rectangular attenuator: Zehnder ComfoSilence rigid attenuator, flow optimised and internally insulated to provide excellent sound insulation.