Introducing the Dust Collector System 45 Degree Elbow by POWERTEC. This convenient adapter serves as a versatile, yet highly functional attachment and tool for common 2-1/2" dust collector fittings. Whether you're adding a sweep to a small shop vacuum dust collection system or running a hose to an overhead mainline, this elbow attachment is made to deliver an airtight connection to your dust collection hoses and vacuum pipes. With its high friction grip, this durable connector will ensure that harmful abrasives, dust and debris are all extracted straight into your dust collector. This helps ensure that clear, clean air are put back into your workshop environment. Versatile: Although it works seamlessly with the extensive line of POWERTEC dust collection accessories, the elbow unit is compatible with most major brands of 2.5 inch dust collector ports. Premium Quality: Molded out of high quality ABS plastic for impact resistance and long-term durability. Product Dimensions (important specification information): Both 2-1/2-inch nominal ends measure precisely at: 2-31/64-inch tapered outer diameter. 2-15/64-inch inner diameter. Molded fitting is 4" by 2.5".