Bathmate hydropumps
Turn the water on.
A Bathmate is a pump you fill with warm water. It lives in the shower, it takes a few minutes, and the water does the pulling.
How it works
Water does the pulling.
Air pumps grab. This one is full of warm water, so the pull on your shaft is wet and even. On a Hydro or Hydromax the bellows at the base are the pump. No hand bulb, no hose.
Hold it. Then let go.
Stop where it feels good, not tight.
Fill
Warm water, in the bath or under the spray, while you’re soft.
Seal
Slide in and press the base flat against your body so it seals all round. Balls stay outside, clear of the seal.
Pump
Short strokes toward your body. Water pushes out the top and the suction builds.
Release
Press the valve on top before you slide it off.
Sizing
Find your size.
How long are you, hard?
Bathmate sizes its pumps by your length when you’re hard.
Measure hard, along the top of your cock from your body to the tip.
- Pick your length. The tube fills.
Every size
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Up to 3 in
Made for up to 3 in (7.6 cm), girth under 6.5 in (16.5 cm).
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3 to 5 in
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Up to 6 in
Made for an erect length up to 6 in.
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5 to 7 in
Hydro 7Hydromax 7Hydromax 7 Wide BoyHydroXtreme 7
Wide Boy is the same length with a wider chamber, for more girth.
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7 to 9 in
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9 to 11 in
Between sizes, or thinking about girth? Ask Adam in the chat.
The pumps
Pick your chamber.
Hydro 7 is the one to start with. Hydromax adds a soft comfort pad at the seal. HydroXtreme is the full kit, with a handball and hose for finer control.
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Hydro 7The one to start with. Ribbed bellows, a press-to-release valve and a printed gauge. Built for 5 to 7 in hard.$175.00View Hydro 7
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Hydromax 5, 7, 7 Wide Boy and 9Four chambers, picked by your length. Soft comfort pad at the seal, printed scale, valve on top.From $219.00View Hydromax 5, 7, 7 Wide Boy and 9
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Hydromax 3For up to 3 in hard, so the chamber fits you instead of swallowing you.$204.00View Hydromax 3
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Hydromax 6Made for up to 6 in. Bellows base, valve on top, printed scale on the chamber.$233.00View Hydromax 6
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HydroXtreme 5, 7, 9 and 11The full kit in a zip case: handball and hose for finer control, gauge, comfort pad, shower strap, lock and cleaner.From $510.00View HydroXtreme 5, 7, 9 and 11
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Hydromax 8HydropumpComing soon
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HydroXtreme 8HydropumpComing soon
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HydroXtreme 5, pump onlyHydropumpComing soon
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HydroXtreme 6, pump onlyHydropumpComing soon
Steamed over means it’s on its way. Wipe one for a look.
Warm water first.
Stand under it for a few minutes before you fill up.
The routine
A few minutes, then let go.
Bathmate’s own routine. Bath or shower, both work.
Warm up
Relax in a warm shower or bath for a few minutes first.
Fill
Fill the chamber with warm water while you’re soft. No lube. On a HydroXtreme, take out the comfort insert, fill it, then put it back.
Seal
Slide in and press the base flat against your body so it seals all round, balls well clear of the seal. With a Hydromax 3, a trim at the base of your cock helps it seal.
Pump
Short strokes toward your body. Water pushes out the top and the suction builds. On a HydroXtreme, angle it slightly up.
Hold, then let go
With a Hydromax, hold up to 3 minutes, press the valve to release, and repeat up to three times.
Rinse
Press the valve, slide it off, rinse it.

The shelf
Add-ons and spares.
The small stuff that lives next to the soap.
Add-ons
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Hydro VibeA silicone ring with two rechargeable bullets that stretches around the bellows, so vibration runs through the water while you pump. Fits Hydro, Hydromax and HydroXtreme pumps, not the HydroXtreme11. Pump not included.$102.00View Hydro Vibe
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Pump TimerPump add-onComing soon
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Hands Free Shower StrapPump add-onComing soon
Spares
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Hydro Valve PackSpare partComing soon
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Hydromax Valve PackSpare partComing soon
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HydroXtreme Valve PackSpare partComing soon
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Cushion Pad for Hydromax and HydroXtreme 3, 5, 6 and 7Spare partComing soon
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Cushion Pad for Hydromax and HydroXtreme 7WB, 8 and 9Spare partComing soon
Aftercare
Rinse it.
After each use take the pump apart, rinse it well in warm water, clean it with mild soap or Bathmate Clean and let it air dry completely.
- Avoid harsh chemicals, perfumed products, alcohol, bleach and abrasives.
- Make sure every part is fully dry before you store it.
- Store it somewhere dry, out of direct sunlight.
- Clean is made for toys, not skin. Keep it out of your eyes.
After the shower
Towel off.
Rings for when the water’s off. Barbarian, Gladiator and Spartan are Bathmate’s stretchy TPE and TPR blend, and they go on with water-based lube.
Any ring: take it off after about 30 minutes, and right away if you feel numbness, coldness or pain.
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BarbarianA soft, thick donut. Rolls on and holds you firm at the base.$21.00View Barbarian
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GladiatorChunky and rubbery. Stretches over everything, then pulls back to a firm hold.$22.00View Gladiator
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SpartanHard angles outside, soft wavy ridges inside where it meets skin.$19.00View Spartan
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Maximus Vibe 45A 45 mm ring with a removable bullet on top of the shaft. Ten patterns, IPX7 waterproof.$59.00View Maximus Vibe 45
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Maximus Vibe 55The 55 mm one. The bullet rides on top, right where he grinds against you.$59.00View Maximus Vibe 55
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Vibe Endurance KitOne bullet, three silicone homes: the Maximus ring, the Vibe Edge and the Hand Vibe grip.$146.00View Vibe Endurance Kit
Questions
Before you get in.
Why water instead of air?
Warm water surrounds your cock, so the pull is wet and even, never grabby. On a Hydro or Hydromax the bellows base is the pump: no hand bulb, no hose.
Bath or shower?
Either. In the shower you fill it under the spray. In the bath you fill it under the warm tap.
Which size do I get?
Go by your length when you’re hard, measured along the top from your body to the tip. Every band is in the size chapter above. Between sizes, or thinking about girth, ask Adam in the chat.
How long is a session?
Hold up to 3 minutes at a time, release, repeat up to three times, and keep the whole session under 15 minutes. With a HydroXtreme, no more than 15 minutes in any 24 hours. Start low and short.
Do I use lube?
No. Water is the point, and the HydroXtreme says to use no lubricant. Rings afterwards go on with water-based lube.
What does it feel like, and what will it do for me?
While it’s on: a firm, even pull through warm water, and you stop where it feels good, not tight. That’s all we’ll tell you it does. We don’t make promises about size, and you should side-eye anyone who does.
How do I clean it?
Take it apart, rinse it in warm water, use mild soap or Bathmate Clean, and let it air dry completely. No alcohol, bleach, perfumed products or abrasives.
Can I add vibration?
The Hydro Vibe ring stretches around the bellows of a Hydro, Hydromax or HydroXtreme pump (not the HydroXtreme11) and holds two bullets. Pump not included.
What is “Coming soon”?
Bathmate pieces we’re still getting ready: more pump sizes, spare valves and cushion pads, a timer and a shower strap. They show a price and a link the day they go live.
Who should not use one?
Read Bathmate’s guide first if you have a medical condition or take blood thinners, and stop if you feel pain or see bruising.












