Connect your shop vacuum to benchtop tools like a band saw or chop saw or anything with a 2-1/2" OD dust port! The 2-1/2" ID fitting with rubber boot and included hose clamp seals tight on 2-1/2" ports like T- or Y-fittings on your dust collection system or a power tool dust port. The other side, a 2-1/4" ID fitting, quick-connects to the hose on your shop vacuum, making it easy to bring dust collection to every benchtop tool in your shop!