Dust Collection System: The dust collectors for woodworking makes woodworking dust collection more adaptable and convenient, allowing shop vacuums to connect to benchtop tools like band saws or chop saws with a 2-1/2" OD dust port Flexible Rubber Boots: The flexible 2-1/2" ID (inside diameter) rubber boot ensures a tight, leak-resistant seal to the collector pipe while adapting to slight size differences in tool dust ports for hassle-free connections Durable, Secure Fit: The dust collection port fits inside dust collection hoses and secures band clamps that extract the unwanted waste from the pipes; our collection accessories are made with ABS plastic that is tough and wear-resistant Versatile Port Compatibility: The Rockler Dust Right port is to connect one end with a small opening ID of 2-1/4” to the hose; for smaller ports, use dust collector connectors with the hose adapter (sold separately) What’s Included: (1) Rockler 2-1/2'' to 2-1/4'' Conversion Shop Dust Collectors Rockler Dust Right Woodworking Dust Collection Accessories Conversion Port: Get the dust around the corners with our dust collector fittings. Add this 2-1/2 dust port collection tool to your woodworking accessories to make your work easy and clean. The power tool adapter for shop vacuum is designed to attach easily and securely to machines for connecting to dust collection systems. One end of the woodshop dust collector port, with an inside diameter of 2-1/2”, seals to your power tool, and the other end, with a 2-1/4” ID, quickly connects to the hose on your shop vacuum, making it easy to bring dust collection to every benchtop tool in your shop. Our dust collector fitting vacuum tool port adapter functions effectively as a connector flange, providing a secure attachment to table saws, jointers, planers, and other similar equipment. These dust collection parts are intended to provide a safe and secure means of connecting the shop machines to your dust setups. The rubber boot at the end of the dust right fittings provides a tight connection to the hose clamps and handle. Tech Specification of dust collector port : Brand: Rockler Dust Right; Weight: 0.30 lb; Small Opening ID: 2-1/4"; Large Opening ID: 2-1/2"; Unit of Measure: Each 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.