Empi 9053 Chrome Gauze Mini Breather Filter Without Shield. Breather For Crankcase, Valve Covers And Oil Filler Necks. Specs: Diameter 2" Overall Height 2-1/8" Filter Height Including Chrome Top & Bottom Base 1-1/2" Exposed Filter Height 7/8" Rubber Hose Centered Rubber Hose Opening 3/8" Rubber Hose Length 11/16" Sold As Each