Bathmate Hydromax 7

What it is

The Bathmate Hydromax 7 is a water-filled pump for adult men, designed to be used in the bath or the shower rather than dry. It is a hand-operated device with no batteries, no motor and no electronics: a rigid transparent chamber, a concertina bellows section at the base, and a small valve at the tip. Bathmate's own branding sums up the operating principle in three words printed on the carton — just add water.

This listing is the Hydromax 7, the size Bathmate lists as X30 on its sizing guide. Gear Isle stocks it alongside the rest of our penis pumps range.

The design, part by part

Everything below is described from the product photographs on this page rather than from marketing material.

• The chamber. A single rigid, transparent barrel. It carries a printed measurement scale down one face, so a position can be read off the chamber itself while it is in use, and textured banding at the upper and lower ends for grip on wet hands.
• The bellows. The black concertina section at the base is the pump. It is compressed by pushing the unit towards the body; there is no separate hand bulb, trigger or hose to hold.
• The base ring. A pale ring finishes the bottom of the bellows, forming the face that sits against the body and closes the seal.
• The valve. A small press valve sits at the very tip of the chamber. It is what water is expelled through as the bellows are compressed, and what is pressed again to let the pressure off at the end of a session.
• Markings. The chamber carries the Bathmate wordmark, the HYDROMAX 7 model name and a CE mark.

Bathmate produces this chamber in blue, clear and red.

Product specifications

Reading the sizing guide

Bathmate sizes its pumps by the measurement of the user, not by the length of the tube, and publishes a four-model guide to make the choice straightforward. The Hydromax 7 is the X30 row.

The figures above are the manufacturer's fitting measurements, quoted in inches exactly as the chart prints them. They describe which chamber a person fits into comfortably — nothing more than that.

How it is used

The Hydromax 7 is filled with warm water and used in the bath or shower, which is the whole point of the bellows design. In outline: the chamber is filled, the base ring is brought against the body to close the seal, and the bellows are compressed so that water leaves through the tip valve. Pressing the valve again lets the pressure off before the unit is removed.

For session length and frequency, follow Bathmate's own instructions and safety notes for this model rather than any timing quoted second-hand online. Do not modify the valve or the bellows, and stop straight away if anything is uncomfortable.

Cleaning and care

Rinse the chamber and the bellows with warm water after every use and let the unit air-dry fully before it is put away, with the valve left open so the inside can dry. A mild soap is fine on the outside of the chamber. Store it somewhere dry and out of direct sunlight, and keep it away from children. Because the chamber is transparent, it is easy to check visually that the inside is clean and clear of residue before the next use.

Who it is for

This is a device for adults over 18 who already know they want a water-based pump rather than a hand-operated air pump, and whose measurements sit inside the X30 row of the guide above. It suits someone shopping in our men's adult products section who wants a single self-contained unit with nothing to charge and nothing to plug in. Anyone whose measurements sit above the X30 row should look at a larger chamber in the range instead, because a poor fit is the most common reason a pump is uncomfortable to use.

Good to know

A vacuum device is not suitable for everyone. Speak to a doctor before using one if you take blood thinners, have a bleeding or clotting disorder, have diabetes, have any condition affecting circulation or sensation, or have had surgery in the area. Do not use it if the skin is broken or irritated. This device is not a medical product and Gear Isle does not sell it as one.

Orders ship in plain outer packaging: nothing on the parcel names the contents, and the Gear Isle name is not printed on the outside.

Frequently Asked Questions

Does the Bathmate Hydromax 7 need batteries or charging?

No. It is entirely manual — the black bellows at the base are the pump, compressed by hand, and there is no motor, battery compartment or charging port anywhere on the unit.

Can it be used dry, outside the bath or shower?

It is designed to be filled with water and used in a bath or shower, which is what separates a Hydromax from a conventional air pump. The bellows expel water through the tip valve, so using it dry is not what the design is for.

How do I know whether the Hydromax 7 is the right size for me?

Check your measurements against the X30 row of the sizing guide above: it fits up to 7.0 inches in length and up to 2 inches in width. If either of your measurements is over that, the X40 or X50 chamber is the correct choice rather than this one.

How is the Hydromax 7 cleaned?

Rinse it through with warm water after each use and let it air-dry completely with the valve open. The transparent chamber makes it simple to see that the inside is clean before it is stored.

Is the packaging discreet?

Yes. The parcel is plain on the outside, with no product photography, no description of what is inside and no store name on the label.

Product information compiled and reviewed by the Gear Isle product team. We transcribe product specifications directly from manufacturer packaging. Found an error? Tell us.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Adult novelty device for adults 18 and over. Consult a licensed healthcare professional before use, especially if you have a medical condition. Keep out of reach of children.