DEMINERALIZER WATER FILTER DEMI TRIO MB400 10''
DEMI TRIO with Purolite MB400 ion-exchange resin is an advanced water demineralization filter in a three-stage system. It allows for th Read moreShow less
DEMI TRIO with Purolite MB400 ion-exchange resin is an advanced water demineralization filter in a three-stage system. It allows for the production of water with very high chemical purity and low conductivity, suitable for use in laboratories, medicine and dentistry, marine aquaristics, and for streak-free window cleaning. The set includes filter housings and accessories that facilitate installation.
Benefits
- Reduces dissolved salts (TDS)
- Reduces water conductivity
Specifications
- Application
- Aquarium
- Cartridge length
- 10″
- DI stage
- Yes
- Filter media
- Mixed-bed resin
- Model
- DEMI TRIO MB400 10''
- Product type
- Demineralizer
Description
WATER FILTER DEMINERALIZER DEMI TRIO MB400 10'' is an advanced water filter designed for effective water demineralization in a three-stage system. The system uses Purolite MB400 ion-exchange resin and makes it possible to obtain water with very high chemical purity and very low conductivity, close to 0 uS. This solution is intended for demanding applications where precise water treatment and stable final quality matter – from laboratories and medical devices to marine aquariums and streak-free window cleaning. Thanks to 3 filter housings and complete mounting accessories, the set forms a practical water filtration system ready for convenient installation.

Advanced water demineralizer for specialized applications
The DEMI TRIO MB400 10" water demineralizer with 3 housings was designed for users who need water with the lowest possible dissolved ion content. The three-stage design increases system efficiency and supports obtaining water with parameters suitable wherever standard filtration is not enough.
This solution is particularly useful in installations where high chemical purity is required. In practice, the system can complement processes such as reverse osmosis, osmosis filter or another reverse osmosis system when the goal is further reducing water conductivity.
Purpose and application
The DEMI TRIO set is used wherever demineralized water of high quality is needed. The system works well in many practical and professional areas:
- Water for laboratory purposes
- Demineralized water for medical and dental devices
- Water for marine aquariums
- Water demineralization for window washing, which helps prevent streaks
- Reducing water conductivity to a value close to 0 uS
The wide range of applications means the system can be used both by professionals and by users who need high-quality water for specific technical tasks.
How the demineralization process works
The filter uses a mixture of two ion-exchange resins, thanks to which it removes ions responsible for water conductivity. The process takes place in stages:
- Cation-exchange resin – water comes into contact with cation resin in H+ form, which exchanges cations present in the water for hydrogen ions.
- Anion-exchange resin – next, the water flows through anion resin in OH- form, where anions are converted to hydroxyl ions.
- Final product – the result is demineralized water with a chemical structure close to H₂O.
This operating method makes it possible to obtain water with very low salinity and parameters suitable for applications requiring high purity.
What is included in the set
The complete set has been prepared to make installation and system startup easier.
- 3 filter housings – for effective multi-stage filtration
- Purolite MB400 resin – a mixture of strongly acidic cation exchange resin and strongly basic anion exchange resin
- Mounting accessories – including a triple mounting plate, filter wrench, elbows and hoses
This configuration makes it easy to create an efficient water demineralization system without having to select the basic installation components on your own.
Main user benefits
- High efficiency – the system guarantees water with 0 ppm salinity, ideal for specialized applications.
- Versatility – it can be used in a wide range of areas, from laboratories to aquariums.
- Easy installation – the set includes all the necessary elements for self-installation.
- Quality and safety – the use of certified materials supports safe operation and long-term performance.
In practice, this means not only effective removal of ions from water, but also convenient operation and broad application possibilities in places where a standard water filter does not provide the required final parameters.
The demineralizer is intended to produce water with very high chemical purity and low conductivity. In applications requiring particularly stable parameters, it is advisable to monitor water conductivity and the condition of the ion-exchange bed in order to maintain the expected performance of the system.
Technical specifications
| Type of device | Water demineralizer / three-stage demineralization system |
|---|---|
| Model | DEMI TRIO MB400 10'' |
| Design | 3 filter housings for effective multi-stage filtration |
| Media bed | Purolite MB400 resin |
| Type of resin | Mixture of strongly acidic cation exchange resin and strongly basic anion exchange resin |
| Stage 1 of the process | Cation-exchange resin in H+ form exchanges cations for hydrogen ions |
| Stage 2 of the process | Anion-exchange resin in OH- form converts anions into hydroxyl ions |
| Final effect | Demineralized water with a chemical structure close to H₂O |
| Final conductivity | Reduction of conductivity to a value close to 0 uS |
| Salinity | 0 ppm |
| Applications | Laboratories, medical and dental devices, marine aquariums, streak-free window cleaning |
| Accessories included | Triple mounting plate, filter wrench, elbows and hoses |
| Installation | Self-installation using the included accessories |
| Materials | Certified materials ensuring safety and long-term performance |
Questions
What is the DEMI TRIO MB400 10'' water filter used for?
It is a water demineralization system designed to produce water with very high chemical purity and very low conductivity. It is suitable, among others, for laboratories, medical and dental devices, marine aquariums, and streak-free window cleaning.
How does demineralization work in this system?
Water flows through an ion-exchange bed made of two types of resins. First, the cation-exchange resin in H+ form exchanges cations for hydrogen ions, and then the anion-exchange resin in OH- form converts anions into hydroxyl ions. The result is demineralized water with a chemical structure close to H₂O.
What resin is used in the demineralizer?
The set uses Purolite MB400 resin, a mixture of strongly acidic cation exchange resin and strongly basic anion exchange resin. This media bed is designed to effectively reduce conductivity and obtain water with very high purity.
Can the FILTR DO WODY DEMINERALIZATOR DEMI TRIO MB400 10'' reduce water conductivity to very low values?
Yes, the system was designed to reduce water conductivity to a value close to 0 uS. This makes it suitable for applications requiring water with a very low dissolved ion content.
What is included in the set?
The set includes 3 filter housings, Purolite MB400 resin, and installation accessories, including a triple mounting plate, a filter wrench, elbows and hoses.
Is the demineralizer complicated to install?
No, the set includes all the basic elements needed to install the system yourself. The presence of housings and mounting accessories makes it easier to prepare a complete system for operation.
Is the demineralizer suitable for marine aquariums?
Yes, the system is suitable for preparing water used in marine aquariums. Low conductivity and high chemical purity of water are especially important in aquarium applications requiring parameter control.
Can this system be used after reverse osmosis?
Yes, the demineralizer can complement systems such as a reverse osmosis filter or a system based on reverse osmosis when additional conductivity reduction and even cleaner water are needed.
Why does demineralized water help with streak-free window cleaning?
Water with a very low mineral content does not leave typical mineral deposits after evaporation. This makes it easier to clean glass surfaces and helps reduce streaking.
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