Valve Rebuild Kit For Use With Grainger Item Number 3UM08 For Use With Mfr Model Number 8321G003 120/60 110/50 Includes Body Gasket Core Spring Large Body Gasket Large Piston U Cup Lip Seal Lower Disc Holder Assembly Lower Insert Gasket Machine Screw Main Disc Middle Insert Gasket Piston Nut Gasket Piston O-Ring Gasket Retaining Cap Small Body Gasket Small Piston U Cup Lip Seal Upper Insert Gasket