Remember when you had a clean workshop? Direct the flow of air around your shop with the WEN 2.5-Inch Blast Gate. This useful adapter installs easily, helping guide your dust collection system to the woodworking machine of choice depending on if the gate is open or closed. This makes for the perfect solution for shops with multiple tools and a single dust collector. The heavy-duty aluminum construction provides long-lasting reliable performance, with a locking knob to keep the gate open or closed as needed. Each side measures in at 54.5mm inner diameter and 61.5mm outer diameter with a slight taper for improved compatibility. Compatible with WEN dust hose models DCA251 and DCA252. Remember when you had maximum suction? Remember WEN.