Bathmate offers several different models of their water-based penis pumps, each designed for varying needs and preferences. Here are the main types: 1. Bathmate Hydromax Hydromax X30: Suitable for men who are between 5 to 7 inches in length when erect. It's one of the most popular models and comes with advanced technology for better suction. Hydromax X40: Designed for men who are between 7 to 9 inches in length when erect. It has a larger chamber for more intense results. Hydromax X50: Ideal for men over 9 inches in length, offering an even bigger chamber and more power. Key Features: Improved pump technology. A wider base for better comfort. Better suction compared to earlier models. 2. Bathmate Hydromax Xtreme Xtreme X30: For men who are around 5 to 7 inches in length. It comes with additional features, like a handball pump, for more control over pressure. Xtreme X40: For men between 7 to 9 inches in length. Xtreme X50: Designed for those above 9 inches in length. Key Features: Includes a handball pump for more precision in controlling pressure. Offers more advanced performance and versatility compared to the regular Hydromax models. 3. Bathmate Hydro7 Hydro7: The original model, designed for men who are between 5 to 7 inches in length. It’s a more affordable option, using water pressure to create a vacuum for improved circulation. Key Features: More affordable compared to newer models. Basic water-pumping technology. Great for beginners. 4. Bathmate Goliath Goliath: Designed for men with larger sizes, specifically those who are over 9 inches in length when erect. Key Features: The largest chamber size in the Bathmate line-up. Best suited for men who have already surpassed the size range of other models. 5. Bathmate Power Rings These are attachments that can be added to the Bathmate pumps for enhancing performance. They are designed to help with erection maintenance and enhancing results.