Versatile Dust Port: Our 4'' Quick Change Combo Port is a universal dust port that connects to the Quick Change Handle or a standard 4'' hose, offering flexibility and efficient dust collection for various workshop setups Sturdy & Easy-to-Mount: With a sturdy base and a 3'' projection, the dust collection quick port securely mounts to your setup, providing a stable and efficient dust collection for a cleaner and more organized workshop Quick-Release & Permanent Suction: Designed for router table cabinets, downdraft tables, and dust reservoirs, our dust collector accessories support both quick-release connections for easy switching and permanent suction Tool-Free Connection: Our router table dust collection combo port’s quick change handle fits snugly over the cylindrical base without requiring any tools, just connect your port for efficient and convenient dust management What’s Included: You get (1) Dust Right 4'' Quick Change Combo Port with this woodworking dust collection port Rockler Dust Collection Port: The Dust Right 4'' Quick Change Combo Port is one of the must-have dust collection accessories for any woodworking shop. This durable & portable router dust collection attachment connects the Dust Right 4'' Quick Change Handle or a standard 4'' hose for efficient dust management. Designed for router table cabinets, downdraft tables, and other enclosed dust reservoirs, it supports both quick-release connections for easy switching and permanent suction for continuous operation. Ideal for improving and becoming a part of your dust collection system for woodworking projects, these woodworking dust collector ports help maintain a cleaner workspace by effectively capturing dust at the source. The Rockler Dust Right Quick Change Handle fits securely over the cylindrical base without tools, while the slightly smaller outer fitting accommodates standard 4" hoses. What’s Included: (1) Dust Right 4'' Quick Change Combo Port. Specifications of 4inch Dust Collection Fittings: Small Opening OD: 4' - Large Opening OD: 4-1/4'' - Base Measurement: 6-1/4'' x 6-1/4'' - Projection: 3''. About Us: The history of Rockler Woodworking and Hardware goes back to 1954 when Norton Rockler started the Minnesota Woodworkers Supply Company in north Minneapolis. It was a small mail-order business with a big aspiration – to become woodworkers' go-to resource for everything they need to complete their projects.