There are three Clearvue Cyclone systems:
This is the most powerful cyclone in the range. It is the best unit for situations where multiple machines may be used at the same time. It has a large input duct and needs a main duct of at least 200mm (8″).
This is the most suitable unit for areas where generally only one machine is used at a time. It is cheaper both to buy and install and uses 150mm (6″) main ducting.
This unit uses your shop-vac to provide the suction but provides a cyclone separator to reduce the volume of dust going through your vac and prolong the life of the shop-vac. If your shop vac uses filters and or bags this unit will guarantee consistent suction.