Designed for the next level of strength in the Bathmate Hydromax pump is one third more powerful than the Hydro series. The three main parts have been through a process of durability and strength testing for long term use and lasting results. The new valve is better at controlling the outflow of water, while the rest is aimed at increasing the force of the pressure.

The Bathmate Hydro Series is the world's first water-based penis pumping device that helps you train your penis to expand evenly. In addition, this series of pumps is also a pioneer of water-based penis enlargement which utilizes the density of water to create negative pressure in the plastic tube while creating a cushion around the penis when pressure is created.