The Milwaukee hose and accessory adapter kit allows Milwaukee hoses to connect to the most common vacuum accessory and hose sizes. The kit includes three pieces 2-1/2" to 1-7/8" accessory adapter, 2-1/2" to 2-1/2"-1-7/8" hose adapter and a 1-7/8" to 1-7/8" hose adapter. These step adapters connect different Milwaukee vacuum hoses and accessories.Find the WET/DRY VAC HOSE ADAPTER at Ace.