Expansion Tank, Height: 6", Width: 2-1/8", Depth: 2-7/8", Three-In-One Outlet Will Take All Popular Hose Designs: 1-1/2"; 1-1/4"; or 3/4" Pipe Thread For AN Fittings, Catch Can Line Is Built Into The Neck, Uses Standard radiator Cap|Dedenbear Expansion Tank Height: 6".