Check the listing for details. Oneida Air Systems Dust Deputy 2.5 DIY Cyclone Separator. Condition: New. Listed at 68.98 USD. Oneida Air Systems Dust Deputy 2.5 DIY Cyclone Separator, 184104, Removes over 99% of dust and debris from airstream, Same base as the original Dust Deputy, making it easy to upgrade, Inlet Size: Nominal 2-1/4" I.D. / 2-1/2" O.D. | Actual: Tapered 2.31" to 2.29" I.D., Outlet Size: Nominal 2-1/4" I.D. | Actual: Tapered 2.31" to 2.29" I.D., Product Height: 15-3/4", Product Depth: 8-1/2", Product Width: 7-3/4", Compatibility: Wet/Dry Vacuums with 2-1/2" (actual 2-1/4" OD) hose cuffs, Upgrade your shop vacuum to a two-stage dust control system with the Oneida® Dust Deputy® 2.5 Cyclone. Removes over 99% of dust and debris from the airstream, containing it before it ever reaches the vacuum and virtually eliminating filter clogging and suction loss! This big brother to the original Dust.