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The Bathmate Hydro 7 (formerly Hercules) is the line's original water-based pump, with a million-plus units sold since 2006
The Bathmate Hydro 7 (formerly Hercules) is the line's original water-based pump, with a million-plus units sold since 2006. Water creates a more even pressure gradient than air, which is why Bathmate built its reputation on this format.
Designed for current sizes of 5 to 7 inches when erect, the Hydro 7 sits in the beginner-friendly tier of the line. Use it in the bath or shower — the unit fills with water around the shaft, then evacuates via a top valve.
Manufacturer claims up to 2 inches of length and 40% girth gains with consistent use. Dimensions: 11.7 inches long, 2.1-inch canal diameter. One-year warranty.
Good for: beginner pumping, water-based pressure, and shower routines.
Body-safe materials. Brands we trust.