Clamp-On Valve Cover BreatherFits 1 3/8 O.D. Tube1 3/8 in. I.D. Opening3 in. Dia. x 3 in. HNo ShieldWashable FilterChrome with JEGS Crown LogoSold IndividuallyIncludes:(1) Clamp JEGS 50195 clamp-on chrome valve cover breather is designed to clamp onto a 1 3/8 in. O.D. breather tube and will help to remove excess crankcase pressures from your engine. Breather tubes can be purchased separately. We recommend 809-88962074.