Universal Adapter Part Number :DWV9000 Size: Small end: ID = 1.7 in OD = 1.875 in Large end: ID = 1.7 in OD=2.28in Height ： 4.4in DWV9000 universal Quick Multi-Function Connector Fits DeWalt Dust Extractors，vacuum hose, various DW tools & shrouds. Allows fits easy, Replacement for DEWALT DWV9000 universal connector Quick Connector Replacement for DeWalt Dust Extractors (DWV9000). Compatible with DeWalt Dust Extractors,vacuum hose and various DW 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 Compatible with DeWalt DWE4597,DW46152, DWV010, ect. The universal connection system for all Dewalt dust-compatible tools and accessories centers around the Universal Connector, which forms a secure, locking connection its attachments. Compatible with DeWalt DWE4597,DW46152, DWE6423K,DWE6421K,DWV010,DWV902M, DWV902L, D27902M, D27902, D27901, D27900, 35mm Diameter Hoseect. The universal connection system compatible with all Dewalt dust-compatible tools and accessories centers around the Universal Connector, which forms a secure, locking connection its attachments.