Introducing the Tool Adapter for Wet/Dry Vacuums by POWERTEC. The POWERTEC versatile adapter was designed to accept an assortment of opening sizes for Shop Vac, vacuum cleaners and workshop power tools. It features a highly flexible plastic construction with measured ridges to provide you with a versatile tool that accommodates your project requirements. With a 1-to-2-1/2 inch diameter range, the adapter custom fits onto any vacuum cleaner's standard hose end. It can also be cut to custom fit unique and different diameters providing you with a multi-functional tool that works with most brands. Whether you re a professional or DIY enthusiast, you all find this attachment easy to use and extremely convenient. Commonly Used For: • Shop Vac Wet/Dry Vacuum Cleaners • Miter Saw • Orbital Sander • Router Tables • Dust Collection Systems • and much more! Diameters Options: • Internal: 1. 25 | 1. 5 | 2. 5 • External: 1 | 1. 25 | 1. 5 | 2 POWERTEC is a professional 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.