Standard cloth

43-inch standard canvas for the 5000 series.

SmartCloth™ windproof Blower Door fabric
Retrotec SmartCloth is a true industry breakthrough. It is an upgrade of Retrotec's standard door cloth with a built-in bias hose that cushions the impact of the wind. SmartCloth makes it possible to get a more accurate pressure value in windy conditions. This offers advantages over traditional methods where a reference tube is placed outdoors on the ground.