
Application areas
shower faucet
bidet
kitchen faucet
basin faucet
Product range
Flow regulators are real water savers. With flow regulators for retrofitting in existing products, you can reduce the water consumption of your shower by up to 40 %, for example – and saving on hot water also means saving on energy heating it.
With flow regulators for retrofitting, you can quickly and easily convert your existing shower or garden installations into water and energy savers.
All of the water saving products listed below are equipped with unique NEOPERL flow regulator technology and are suitable for use in the following areas.

The PCW-01 flow regulator, a ½" washer with integral flow regulator, replaces the usual washer in the shower hose. The PCW-01 thereby has two functions: sealing and flow regulating. This water saver is easy to install and fits in any ½" hose connection, making it the perfect retrofit solution for your existing shower or shattaf hose.
See the PCW-01 in action: Learn more in the

The PCW-02 flow regulator, a ½" washer with integral flow regulator and flexible silicone turbine, is inserted into the handle of shower handles or into bib taps (e.g. garden faucets) and replaces the usual washer there. The flexible turbine facilitates use in different bore diameters and ensures secure positioning in any 1/2" connection with a male thread.
See the PCW-02 in action:

The PCR shower connection with integral flow regulator is simply screwed between the faucet and shower hose as a visible adapter. It fits to all current shower faucets with its ½" thread.

The ECOBOOSTER Shower is a dual mode flow regulator that is screwed between the shower handle and hose. It is set to water saving mode in its default position, with a flow rate of approx. 5 liters per minute, and can be very simply switched at the press of a button to the full flow rate (max. 20 liters per minute) if needed, such as for washing hair. This means that you can always choose between an economical or a greater amount of water. When the faucet is closed, the ECOBOOSTER Shower automatically switches back to water-saving mode.
The existing washer is removed and replaced with the PCW-01. Insert the flow regulator into the shower hose with the logo side up and screw it to the faucet.

The existing washer is removed and replaced with the PCW-02. Insert the PCW-02 flow regulator into the hand shower with the turbine side facing against the flow and screw it to the hose thread.
The existing washer is removed and replaced with the PCW-02 flow regulator. Insert the PCW-02 into the wall screw connection with the turbine side facing against the flow and screw it to the thread in the wall.

Simply screw the PCR shower connection as an adapter between the faucet and shower hose. Do not remove the existing washer in the shower hose, but screw it to the new connection instead.

Simply screw the ECOBOOSTER Shower as an adapter between the shower handle and hose. Do not remove the existing washer in the shower hose, but screw it to the new connection instead.
Please note that not all flow regulators for retro-fitting are available in every country and for all customer areas. For more details, as well as information on worldwide approvals, please see the product listing. To refine your selection, please use the following points as filters.
Do you need help choosing? You will find the relevant contact information at the bottom of the page.

- Part No. : 588632100
- Flow rate: 2.0 l/min
- Bore diameter: G 1/2"
- Pressure range: 1 - 10 bar
- Temperature range: 65°C / 150°F

- Part No. : 588633100
- Flow rate: 3.0 l/min
- Bore diameter: G 1/2"
- Pressure range: 1 - 10 bar
- Temperature range: 65°C / 150°F

- Part No. : 588634100
- Flow rate: 4.0 l/min
- Bore diameter: G 1/2"
- Pressure range: 1 - 10 bar
- Temperature range: 65°C / 150°F

- Part No. : 588635100
- Flow rate: 5.0 l/min
- Bore diameter: G 1/2"
- Pressure range: 1 - 10 bar
- Temperature range: 65°C / 150°F

- Part No. : 588636100
- Flow rate: 6.0 l/min
- Bore diameter: G 1/2"
- Pressure range: 1 - 10 bar
- Temperature range: 65°C / 150°F

- Part No. : 588637100
- Flow rate: 7.0 l/min
- Bore diameter: G 1/2"
- Pressure range: 1 - 10 bar
- Temperature range: 65°C / 150°F

- Part No. : 588638100
- Flow rate: 8.0 l/min
- Bore diameter: G 1/2"
- Pressure range: 1 - 10 bar
- Temperature range: 65°C / 150°F

- Part No. : 588639100
- Flow rate: 9.0 l/min
- Bore diameter: G 1/2"
- Pressure range: 1 - 10 bar
- Temperature range: 65°C / 150°F

- Part No. : 588640100
- Flow rate: 10.0 l/min
- Bore diameter: G 1/2"
- Pressure range: 1 - 10 bar
- Temperature range: 65°C / 150°F

- Part No. : 588641100
- Flow rate: 11.0 l/min
- Bore diameter: G 1/2"
- Pressure range: 1 - 10 bar
- Temperature range: 65°C / 150°F
Please contact us to get help finding the right flow regulator for retrofitting in your home. Our qualified staff will be pleased to support you.



These flow regulators are fitted in drinking water supply lines and ensure a regular flow. They are suitable for numerous technical applications.
Here you can discover our full range and the general functions of flow regulators.

Here you can find out all about faucet aerators, their features and functions, and which standards and approvals they meet.