This MagFitt™ coupling allows you to quickly and easily move a 2-1/2" hose from the dust collector to any machine fitted with this mating magnetic machine coupling. Magnetic couplings are perfect for shops that do not have a central collection system. Attach this coupling to each of your shop machines to simply swap the hose from machine to machine without tools or cumbersome rigid connections. Features: Rugged ABS plastic construction Steel ring for magnetic attachment Easily move hose from machine to machine Works with 2-1/2" Magnetic Hose Connector (#189154) Specifications: Connector Type: Coupling Dimensions: 4.25" X 4.4" X 3.2" What’s Included: (1) MagFitt™ Magnetic Machine Coupling - 2-1/2"