The CleanSpace CST Cleaning and Storage Plug is designed to be used only with the CleanSpace CST ULTRA Power Unit (CST1012).
With the filter removed from the CleanSpace CST ULTRA Power Unit, this accessory is used to seal all openings (both bellows and filter air inlet).
During cleaning, all openings must be sealed. It is also recommended that all openings are sealed and after cleaning and decontamination, and during storage.