Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si DWV9000 universal Quick Multi-Function Connector Fits for Dust Extractors,vacuum hose, various tools & shrouds. Allows fits easy Replacement for DWV9000 universal connector Quick Connector Replacement for Dust Extractors (DWV9000). For Dust Extractors,vacuum hose and tools & shrouds.Allows fits quick, easy, and durable connection between 1-1/4 In There is a bearing lock/unlock device on the adapter ring of DWV9000. You need to screw it to the unlocked position before you can slide it into the dustproof port. Fits Models for DWE4597,DW46152, DWV010, . The universal connection system for all dust-compatible tools and accessories centers around the Universal Connector, which forms a secure, locking connection its attachments. Replacement old part number:DWV9000 Colour:Black Material:Plastic Size: Small end:ID=1.7 in OD=1.875in end:ID=1.7 in OD=2.28in Height:4.4in Package Contents: 1 * Quick Multi-Function Connector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.