600-1157 Y CONNECTOR, 2in - 1.5in Y Create an account and/or login to see pricing and order online. 600-1157 Overview NATIONAL STOCK NUMBER 4730-01-519-5907 Allows two technicians to operate vacuum tools from one vacuum Connects two 1" Hoses to a 2" Vacuum Port Compatible with the following vacuums: ACE-1000 ACE-1040 ACE-2100 ACE-2140  Dustless Sanding Accessories NSN's available on most accessories. Hose connectors, hose adaptors, and other vacuum sanding accessories.  Vacuum Filters and Disposal Bags Filter bags, cartridge filters, and disposal bags to keep your Clayton vacuums running like new.