From the Manufacturer
Available in two sizes, these hoods are designed to fit most 8-Inch, 10-Inch and 12-Inch contractor-type table saws, both foreign and domestic. Mounted face down when in use, they can be easily adapted to other machines as well. These hoods are very popular with contractors because they can be permanently attached to the saw without adding excess weight.
These hoods can be easily adapted to mount directly under the blade on most contractor-type table saws with open stands. 4″ outlet.