FUNCTION: Engineered to provide a secure, 90-degree connection for 4Inch ID dust collection systems. Note: For a with 4Inch OD equipment ports, a 70148 Dust Control Flex Cuff is recommended to optimal performance and durability. QUALITY: Constructed from high-quality ABS material, this rugged black elbow connector is built to resist the abrasive nature of sawdust and debris in common workshop environments, ensuring and reliability in your dust extraction setup. INCLUDES: One 4 Inch 90 Degree Elbow Dust Collection Fitting designed to facilitate a seamless, airtight connection between your workshop's dust collection hose and other fittings. Essential for maintaining a clean and efficient workspace. VERSATILITY: Compatible with a wide range of dust collection ports and hoses, this elbow connector is a versatile addition to any woodworking shop. It enhances the functionality of your dust collection system by expanding its range and efficiency., Manufacturer: Akfldms