The Hydromax X20 is the latest addition to the Bathmate pump lineup. The X20 has similar design with the previous and best-selling models, X30 and X40. The difference, X20 design is focused on smaller penis sizes. It can accommodate maximum girth growth up to 5.5 inches, and maximum length gains up to 7.5. The features are basically similar but since has a smaller size, the power is increased by up to 35% more power compare to Hercules although it’s 25% smaller than X30. Now, you may think what’s the use of using a smaller pump if the ultimate goal is to increase penis size both in girth and length?