Fits All T3-2400 Gas Springs (All Strokes Lengths). Models Include: T3-2400X16, T3-2400X19, T3-2400X25, T3-2400X32, T3-2400X38, T3-2400X50, T3-2400X63, T3-2400X75, T3-2400X80, T3-2400X100, and T3-2400X125.Hyson Products