At Monkey Industrial Supply, we have various Nordfab blast gates for sale. You can divide our duct blast gates into four categories. First, we have the manual blast gates, which are cheaper but still provide a fast and efficient way to control the amount of air coming out of the machine. Second is the NFMES Manual, which has two inner UHMW seals that will decrease the chance the leakage around the blade. Third is the SD Automatic, which is a heavy-duty blast gate that you can use for woodworking. Fourth, and finally, the NFMES Automatic has inner UHMW seals, which are designed to cover the blade area. View the video above to learn more about our duct blast gates and why they are beneficial for dust systems. Contact us today for more information.