Why Hydro?

A pioneer in hydropump technology, trusted by over 1 million men worldwide.

Hydraulic precision

Unlike air-based pumps, Hydro7 evenly distributes water pressure – reducing risks and maximising gains

Affordable price

Our pumps put pressure on your penis – not your wallet

Proven results

78% of users reported measurable improvements in size, strength, and sexual performance after just weeks of regular use.

Suitable for up to 7 inches

The Hydro is available in a single size and designed to fit erect lengths up to 7 inches. Studies show this accommodates 99% of men worldwide.

The original hydropump

A pioneer in hydropump technology, trusted by over 1 million men worldwide

Certified skin-safe materials

Built with premium durable, medical-grade materials that are designed to last.

Discreet billing & packaging

2-year warranty on all hydropumps

FREE worldwide delivery

Dispatched next business day

How Hydro works

The Hydro combines cutting-edge design with your body’s natural abilities to give you a safe, effective way to boost blood flow, increase size, and build confidence.  It’s simple, discreet, and convenient.

The science

Bathmate harnesses the power of water-based pressure to create a vacuum effect that naturally increases blood flow to the penis. This surge in circulation helps stretch and expand the erectile tissue, leading to thicker, firmer, and more responsive erections over time. With regular use, the pump encourages healthier vascular performance and greater oxygenation, promoting stronger, more consistent results without the need for medication.

How to use

Bathmate fits effortlessly into your daily routine - just use it in the bath or shower. Fill the chamber with warm water, insert your flaccid penis, and press the pump against your body to create a secure vacuum seal. Hold for up to 3 minutes, release the pressure, and repeat the process up to three times, staying within a 15-minute session. Finish with a light massage to aid recovery and circulation.ate work its magic, and follow our pumping guidelines.

Is it safe?

Bathmate is designed with safety at its core, making it a reliable choice for daily use when following the recommended guidelines. Unlike traditional air pumps, Bathmate uses water to apply balanced pressure evenly across the penis - helping prevent discomfort and reducing the risk of over-pumping. Each unit is FDA-registered and equipped with key safety features, including pressure control valves and comfort-enhancing seals.

Expected results

Bathmate is built for results you can feel and measure. Right from your first session, you may notice increased fullness and temporary size gains as blood flow improves. Stick to the routine, and within a few weeks, your body begins adapting - delivering firmer erections, greater stamina, and enhanced performance. By weeks 8 to 12, users commonly report gains in both girth and length, along with a noticeable boost in sexual confidence. After week 16, progress tends to hold for a long time.

Your satisfaction, guaranteed.

Not convinced? Experience the Hydromax risk-free with our no-questions-asked return policy. If you’re not happy, send it back for a full refund. It’s as easy as that.

Learn more

Results you can trust.

Customer Reviews

Based on 116 reviews
84%
(97)
14%
(16)
3%
(3)
0%
(0)
0%
(0)
C
Cody M. (Birmingham, US)
Gained 1 inch

The bathmate has been great. I am looking to uprgarde soon to the hydromax. Listen to the bath mates instructions and you will see gains.

S
Shaun A. (Sylvan Lake, CA)
Happy customer

I have the Hydro7 and after about 4 weeks of use (5x a week) I have gained 3/4 inches in length and I'm basically just past the gauge limits on the pump. I wasn't expecting results like this so quickly. I may need to buy the Hydromax8 next.

C
Customer (Maitland, AU)
Hydro7

With 2 weeks of use it have noticed a positive difference. I do use this every day and will continue to do so. Using the Hydro7 has given me back my confidence.

N
Nathan P.

Hydro7

S
Shawn N. (Salt Lake City, US)
Slowly but SURELY!

At first I was starting to think I had just bought an over priced VED. But, with patience and determination, it has started to show actual and true improvement results, just a stated. It has given me more ceremony to continue using the Hydro 7 now knowing that it is actually working like it is advertised, but more importantly, as I want it to! I'm glad I took the chance and purchased it! DON'T give up! Keep using it and you WILL start seeing AND feeling true and tangible results! Thank you BathMate!

K
Kenneth L. (Oklahoma City, US)
Very pleased

I have seen some good results and I’m still pumping.

M
Manuel S. (Amherst, US)
I like the new hydro 8 inch

The new 8 inch hydro is awesome

G
G. (Round Rock, US)
I wasn’t sure at first

I am young, 22 years old and notice my guy getting smaller and not as stiff anymore. I used to be 5.5 but went down to a softish 5, after using hydro for a month as intended, I went back up and now to a 6. I’m very happy with my pump and I’ll continue using it.

d
david r. (Dublin, IE)
great

great product

F
Felice P.

Hydro7

Built for performance

A pioneer in hydropump technology, trusted by over 1 million men worldwide

Your Hydro questions, answered.

How does the Hydro function?

The Hydro works by using water-based vacuum pressure to safely and effectively increase blood flow to the penis. When filled with warm water and sealed against the body, the pump creates a gentle vacuum that draws blood into the erectile tissue. This process helps improve circulation, support erection strength, and over time, encourage gains in size and stamina.

Who is the Hydro suitable for?

The Hydro7 is ideal for men with a penis length of up to 7 inches when erect. It’s designed for those new to penis pumping who want a safe, effective introduction to hydro-vacuum technology. If you're looking to improve erection quality, boost blood flow, or increase size over time, the Hydro7 offers a solid, user-friendly starting point.

Can I use the Bathmate Hydro in the shower?

Using the Hydro in the shower offers the same performance as in the bath, with added convenience and minimal setup. For even more comfort and hands-free control, pair it with the Bathmate Shower Strap accessory.

Whether you prefer showers or baths, the Hydro fits your lifestyle - delivering consistent results wherever you choose to pump.

What is the recommended usage frequency for the Hydro?

For the best results, use the Hydro once a day for up to 15 minutes, no more than five times per week. This frequency allows your body to recover between sessions while supporting measurable gains in erection strength, blood flow, and size.

Can I achieve permanent results with Hydro?

Regular pumping with the Hydro encourages gradual tissue expansion and improved vascular health, which can lead to lasting improvements in erection quality and size. To maintain and reinforce your gains, continued use is recommended as part of your long-term routine.