INCLUDES: (4) 6" Aluminum Blast GateFUNCTION: Maximizes the efficiency of your dust collection system by directing and regulating the air flow from one machine to anotherFEATURES: Self-cleaning and clog proof groove design to eliminate constant cleaning maintenance, along with an easy-sliding gate, and locking stop to ensure perfect gate alignmentBUILD: Blastgate flaunts a heavy duty aluminum construction with a premium steel gate designed for eliminating air leakage, project flexibility and long-term usageThe Blast gate Nominal 6” OD openings taper from 5. 83” to 5. 89 Introducing the 6-Inch Aluminum Blast Gate by POWERTEC. This must-have dust collector attachment helps maximize your dust collector system by regulating proper air flow to your designated machine of choice. Open and closed, it acts as an in-line gate to control the vacuum flow to specified areas of your work shop. Additionally, this aluminum blast gate works seamlessly with properly sized plastic and metal ducts, flexible hoses and 6-inch ports for an assortment of popular brands. Self-Cleaning Unlike other models that require constant attention, this unit possesses a self-cleaning gate (open slot) at the back that allows for clog-free operation. It also possesses a built-in stop that keeps the gate exactly where you need it during operation. When properly used, this self cleaning blast gate not only helps eliminate constant maintenance from jamming, but prevents air leakage that would otherwise disrupt your workflow. Premium Construction Our Blast Gate features a solid aluminum body with a highly durable stainless steel gate providing a more long term and durable solution to plastic versions. Universal Fit Featuring a nominal 6 inch OD diameter, this unit will provide a perfect fit for most professional and at-home workshop dust collection systems. Whether you're a beginner or seasoned woodworker, it s extremely easy to use and install. POWERTEC is a leading manufacturer of high quality woodworking tools and accessories, machines, and an assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the latest innovations, technology, and product development to the industry.