LC/MS preventive maintenance kit, 6495D. Contains 1 rotor seal, 15/pk lint free cloth, 100/pk swabs, 2/pk AVF 60 Gold Oil, abrasive mesh 4000 Grit, nebulizer needle SST316 replacement kit, 4 canted coil springs, 1/4 inch Nitrogen Big Universal Trap, and MS120 exhaust filter kit.