The HS3 series ranges from model sizes 750 to 7,500, with the same features and technology as the HS series.

At the same time, the HS3 gas spring is shorter than the corresponding HS gas spring by 25 mm, except HS3 5000 and HS3 7500, which are 37.5 mm and 50 mm shorter respectively. HS3 springs share the same HS mounting possibilities and stroke lengths, with exception of strokes 12.5, 37.5 and 62.5.