POWERTEC USA
4" to 2-1/2" Tapered Dust Collection Adapter (70291)
Seamless Connection for Multi-Size Vac Systems
The POWERTEC 70291 Tapered Reducer is a uniquely engineered adapter designed to bridge the gap between a 4" O.D. machine port and a 2-1/2" I.D. dust collection hose. Unlike standard reducers that require cuffs or clamps, this adapter utilizes a precision-tapered friction fit. The large 4-inch end is designed to slide inside a 4-inch nominal port, while the 2-1/2 inch end provides an accurate seat for your smaller shop vacuum lines. This makes it an essential tool for quick-disconnect setups and shops running a hybrid of industrial and portable machinery. This adapter is uniquely designed to attach a 2-1/2” ID dust collection hose directly to a 4” OD machine port. The adapter uses a friction fit to fit inside the 4” port without the need of cuffs or couplers, making a quick disconnect that can be used for multiple machine setups.
Constructed from high-quality ABS Plastic, this adapter is built to withstand the abrasive movement of wood chips and sawdust without cracking or leaking. Its lightweight profile and simple twist-on installation streamline your workflow when switching between tools like table saws and small sanders.
- No-Clamp Installation: Tapered design provides a rock-solid friction fit that eliminates the need for extra hose clamps.
- Friction Fit Logic: Large end fits inside 4" OD ports; small end fits inside 2-1/2" ID hoses.
- Airtight Performance: Precision molding ensures a secure seal to maintain maximum vacuum pressure.
- Impact Resistant ABS: Rugged black plastic construction handles the daily wear and tear of a professional shop.
- Quick Disconnect: Ideal for mobile shops—switch your vacuum line from tool to tool with a simple twist.
Technical Specifications & Dimensions
- Large Tapered End (OD): 3.51" to 3.73" (Fits inside 4" ports)
- Small Tapered End (OD): 2.45" to 2.49" (Fits inside 2-1/2" ID hose)
- Material: Industrial Grade ABS Plastic
- Color: Black
- Connection Type: Tapered Friction Fit
Verified Application Guide
- Table Saws
- Router Tables
- Disc Sanders
- Band Saw Ports
- Jointer Outlets
- Shop Vac Hoses
POWERTEC is a leading manufacturer of high-quality woodworking tools, dust collection accessories, and OEM replacement parts. We are committed to workshop innovation, providing the durable components required for a clean and efficient workspace.