Quick Change Dust Collector Handle: Our 4" Quick Change polymer dust collection fitting handle is the key component of a simple and cost-effective dust collection and shop cleanup system. This handle quickly moves a single 4'' dust hose from machine to machine or slips on a variety of optional cleaning attachments. Space-Saving: Rather than permanently plumbing each of your power tools for dust collection, an expensive, space-consuming venture, the Quick Change Handle lets you move a single 4 inch dust collection hose from one machine to another. Ideal for Small Workshops: There is no need for permanent rigid ductwork, this 4 inch dust collection fittings handle is easier to keep your machines mobile, an essential element of any small shop. This is a must have dust collection tool for your workshops. Fasten Securely: When used with stationary tools, our 4 inch hose dust collection handle fits snugly onto any of our Dust Right Tool Ports (sold separately), which are fastened securely to the stationary tool. When it's time to clean up, the handle also connects to a variety of convenient cleaning accessories (sold separately). Angled Design: The angled design of this dust collector handle lessens the strain on the hose. This reduction in stress reduces wrist fatigue caused by the weight of the hose. Rockler Dust Right 4 Inch Quick Change Handle: Our quick change dust collector handle is an essential woodworking tool for shop dust collection. This handle enables you to connect the dust collector hose to a host of woodworking tools and accessories to clean the dust in your shop keeping you healthy. Using our dust collector handle reduces your dependence on a fixed plumbing dust collection system and lets you move the shop dust collection hose and machines around your shop for cleaning. — 4 Inch Dust Collection Accessory Features: Large ergonomic dust port handle with two sturdy points of connection to the main duct - Air flow adjustment valve lets you reduce airflow to prevent floor mats and other items from sealing off the opening. — Specifications: Weight: 1.000000 — Dust Collector Handle Tech Specifications: Quick Change Inside Diameter 4 1/4'' - Compatible Hose Diameter: 4'' - Material: Durable Polymer. — 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.