This kit includes all the gaskets and o-rings to rebuild your E-61 Grouphead. 14 Pieces total: Gigleur Filter Screen, O-Ring for Mushroom Valve (a thinner one and a thicker one so you can use the one best suited to your grouphead) , Gaskets for Lever, Closing Gaskets for Valves, Teflon Gaskets, and Haynes High-Temperature Lubricant. Pleas