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Accessories Main Unit, K (KVK) Adapter, M (MYM) Adapter, G (Gaster) Adapter, Masking Ring, Rubber Packing (Fine), Instruction Manual, Installation Guide, Guarantee Card, Warranty
Size Approx. 84mm×244mm×136mm
Materials ABS Resin, Polyacetal, Stainless Steel, Ethylene Propylene Rubber, Silicone Rubber
Weight Approx. 340g
Grip screw type G1/2
Country of manufacture China
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A revolutionary showerhead with two types of bubbles for even more beautiful skin.

After analyzing the effects of water on the skin, ReFa has developed an entirely new kind of shower head. The ReFa FINE BUBBLE creates two types of bubbles to gently cleanse without causing any stress to the pores of the skin and scalp: ultrafine bubbles and microbubbles. By embracing the entire body with warmth and comfort as it cleanses, the ReFa FINE BUBBLE elevates bathing to a beautiful art form.

The science of ultrafine bubbles and microbubbles.

To prevent shower water from becoming an irritant to your skin and hair, ReFa applied breakthrough Japanese fine bubble technology to the design of this revolutionary showerhead. Far smaller than the bubbles we’re used to seeing when we bathe, ultrafine bubbles and microbubbles have a unique cleansing capability that transforms bathing into a luxurious beauty routine.

Hydrophobic interaction:

the ultimate cleansing mechanism.

Hydrophobic dirt particles attach to the hydrophobic surfaces of the bubbles.


By absorbing these dirt particles while floating to the skin’s surface, the bubbles gently remove it from the skin.





Research and development has increased dramatically to promote the application of ultrafine bubbles and microbubbles to various industries, including environmental and medical initiatives. The Fine Bubble Industries Association (FBIA) was founded to support this movement, and in 2013, MTG joined the organization. Since then, MTG has been making a sustained effort to encourage the development of the fine bubble business.



The FBIA logo and the terms "fine bubbles," "ultrafine bubbles," and "FINE BUBBLE" are registered trademarks of the FBIA, which is dedicated to promoting the development and application of fine bubble technology.


 Ultrafine bubbles & Microbubbles gently cleanse your skin

while embracing your body with warmth and comfort.

ReFa’s fine bubble technology enables this revolutionary showerhead to generate  two varieties: ultrafine bubbles and microbubbles. Showering with ultrafine bubbles and microbubbles gently, comfortably and effectively removes dirt and grime from the pores of your skin and scalp. By filling your bathtub with ultrafine bubbles and microbubbles, you can embrace your body with the warmth and comfort of a silky-soft fine bubble bath. Enjoy the comfort and relaxation of an at-home spa experience brought to you by the science of bubbles.



ReFa’s proprietary Spiral Cavitation structure instantly delivers a multitude of fine bubbles to your skin.



A large number of bubbles


The greater the number of bubbles, the more benefits there are for the skin. The Spiral Cavitation structure of the ReFa FINE BUBBLE instantly generates a lot of bubbles for the maximum number of benefits.




Silky-soft on the skin


In developing the ReFa FINE BUBBLE, we calculated the size and number of holes in the shower head to achieve a silky-soft flow of water that is gentle on the skin and hair.




Double your cleansing with two types of bubbles.


Double your cleansing with two types of bubbles.
Every time you take a shower with the ReFa FINE BUBBLE,  bubbles wash away dirt particles from your scalp and pores-leaving your skin looking clean and radiant.



Embrace your whole body with warmth and comfort.


Place the shower head in your bathwater to enjoy a milky-white, smooth-as-silk microbubble bath. Two types of bubbles gently wrap around your skin to warm your body and relax your mind.

Enjoy a microbubble bath at home in just 60 seconds

Hydrates as it cleanses.

With its two types of bubbles, the ReFa FINE BUBBLE washes away dirt particles with water that feels as smooth as silk-and provides the skin with vital hydration.

The water content of the skin’s surface immediately after use was about 22% higher than it was before use.

【Subjects】17 subjects, male and female, ranging in age from 26 to 60.

【Test method】Washed the subjects' hands with soap and let them acclimate in a 20°C ± 1°C room for 20 minutes. Exposed the backs of the subjects' hands to water from the shower (temperature: 36.5°C ± 0.5°C; flow rate: 5.00 ± 1mL/min.) both without the bubble feature (with the ReFa FINE BUBBLE set to OFF) and with the bubble feature (with the ReFa FINE BUBBLE set to level 2) for 40 seconds at a time, before measuring the water content of the skin’s surface.

Reduce water usage by up to 40%


The ReFa FINE BUBBLE enables you to conserve more water than you would with a conventional shower head.



Easy to turn on and off


Turn the dial of the built-in bubble control function to switch the bubbles on and off and easily adjust the water pressure.


Product Story

Fine bubbles: a Japanese innovation.

Fine bubble technology began in Japan and has since been perfected through the efforts of several Japanese engineers and researchers, with each breakthrough becoming a foundation for the next. In order to make this technology available around the world and create an international standard, the Fine Bubble Industries Association (FBIA) was founded. ReFa FINE BUBBLE has worked together with the FBIA to collect evidence in support of its theories and advance fine bubble technology. By developing products that maximize the potential of fine bubble technology, we hope to provide greater exposure for fine bubbles while delivering their health and beauty benefits to people around the world.



ReFa FINE BUBBLE Installation Guide


Part Names

Rubber seal (thick)

Remove the rubber seal (thick) and then attach the shower head to the shower hose.



When you buy the product, this part will be attached to the shower body. Do not lose the part as it is designed to be removed for easy maintenance.

How to install

1. Make sure that the faucet is closed firmly. Then turn the shower head you are currently using to the left and remove it. If it is difficult to remove, wearing rubber gloves will make it easier.

*Use the rubber seal already attached to the metal fitting of the hose. If the position of the rubber seal is incorrect, correct it and then attach the shower head.

2. Hold the metal fitting of the hose tightly, and then turn the shower head clockwise to attach it.

If water leaks from the place where the metal fitting of the shower hose and shower head are connected. Remove the rubber seal on the shower head and replace it with the rubber seal (thin) provided with the product.


When attaching to KVK, MYM and GASTAR showers

Use the external ring and three types of adapters provided with the shower head and attach it.

1. Attach the adapter to the metal fitting of the hose.

2. Align the external ring to the grooves on the adapter, and then attach the shower head to the adapter.


Kinds of provided adapters which can be used to install the shower head
*Keep the spare adapters carefully and do not lose them.

Precautions when installing

  • We recommend that you keep your old shower head even after installing this one.
  • The shower head may be installed as is when attaching it to the metal fitting of a MYM hose. Use the adapter only when the shower head cannot be installed directly.
  • There are some showers made by Noritz, Rinnai, and LIXIL (INAX) for which the shower heads cannot be replaced. Contact the respective manufacturer if you are uncertain.
  • This shower head may not attach to imported shower hoses (not manufactured for the country/region they were purchased in) or water may leak when the shower head is attached to such hoses.
  • Do not forcefully attach the shower and adapter to the metal fitting of the shower hose if their dimensions do not match.
  • Stop using the part if its plating has come off.

If you cannot turn the shower smoothly when you attach it. The shower head may have been inserted diagonally into the metal fitting. Make sure that the shower head is straight and then attach it.


If the head turns away and does not face forwards when it is on the shower hook. You can adjust the hose below the metal fitting so that the head faces forwards. (Except for some showers)

ReFa FINE BUBBLE is available at these stores:

Product catalogue

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