Water filters
Filter cartridges
Reverse osmosis
Softeners & Iron Filters
Accessories & Parts
Soda makers
Bestsellers
Wholesale
Soda makers
BLOG
Kontakt
Services
PayU
Tips
DEMI Set for final demineralization of water with high-quality MB400 ROHM HAAS resin. Particularly recommended in marine aquaristics as the last stage after the RO osmotic filter. The set includes a clear 10" housing with a 1/4" thread, a disassemblable multi-fill canister, resin (pre-filled), a key, a mounting plate, as well as quick couplings, clips, and a hose.
The water demineralization kit with MB400 resin is a complete final DEMI stage for obtaining water of very high purity after the reverse osmosis process. This practical water filtration system component is installed as the last stage after the RO filter to remove residual ions from the water after the osmotic membrane has done its job. The solution is especially recommended for marine aquariums and other applications where final water quality is of key importance. The set includes a transparent 10" housing, a refillable disassemblable cartridge, pre-filled with MB400 resin, a wrench, a mounting plate, and connection accessories.

The DEMI kit with MB400 resin has been designed as the final stage of water treatment after an RO reverse osmosis filter. Its purpose is to remove residual ions from the water that may still remain after the reverse osmosis system has operated.
As a result, you get water with the highest possible purity, suitable wherever a very low level of minerals and dissolved compounds matters. This solution is especially valued by users who require precise control over water parameters.
This water filter is intended for final polishing after an RO system has operated. It performs particularly well in marine aquariums, where parameter stability and water purity have a direct impact on the safety of demanding aquatic organisms.
The kit is also used wherever demineralized water is needed for technical and specialist applications. The final DEMI stage increases control over the quality of water intended for further use.
The kit includes the components needed to create the final water demineralization stage:
An RO filter very effectively reduces the amount of dissolved contaminants in water, but in more demanding applications, the final DEMI stage allows the water to be additionally polished by removing residual ions. This is especially important when the water filtration system is expected to deliver water with the highest possible purity.
In practice, this means greater control over water quality and a lower risk of introducing unwanted substances into the system. For this reason, mixed-bed resin kits are a very popular addition to RO installations as the final stage after the osmotic membrane.
The kit should be used as the final stage after purification with an RO osmotic filter, that is, after the osmotic membrane. To achieve the best results, the correct flow direction must be maintained and the effectiveness of demineralization should be checked periodically. The frequency of resin replacement or refilling depends on the quality of the feed water and the intensity of use.
The transparent housing makes quick visual inspection of the cartridge easier. This is a convenient solution in everyday use, as it allows better monitoring of the kit's condition and easier service planning.
The disassemblable refillable cartridge allows convenient refreshing of the kit after the media is exhausted, without the need to replace the entire cartridge body. This is a practical, economical, and user-friendly solution.
The included mounting and connection accessories facilitate installation in typical systems based on an RO reverse osmosis filter. Thanks to the complete set of components, the need to purchase additional parts at the start can be reduced.
| Parameter | Value |
|---|---|
| Product type | Water demineralization kit |
| Purpose | Final water demineralization after an RO osmotic filter |
| Application | Especially recommended for marine aquariums and demanding applications |
| Resin type | MB400 ROHM HAAS |
| Housing type | Transparent 10" housing |
| Connection / thread | 1/4" |
| Media cartridge | Disassemblable, refillable |
| Kit contents | Pre-filled resin, wrench, mounting plate, quick connectors, clips, tubing |
The kit is used for final water demineralization, most often as the last stage after an RO reverse osmosis filter. It helps obtain water of very high purity.
Yes, it is especially recommended for marine aquariums, where final water quality is very important for parameter stability and tank safety.
Yes, the kit includes MB400 ROHM HAAS resin and it is pre-filled in the set.
The kit is installed as the final stage after purification with an RO osmotic filter, that is, after the osmotic membrane.
It means that after the media is exhausted, the container can be opened and refilled with resin again, without the need to replace the entire cartridge body.
The set includes a wrench, mounting plate, quick connectors, clips, and tubing, which makes connection and installation easier.
Yes, the transparent housing makes it easier to inspect the condition of the cartridge and allows faster assessment of whether the kit requires service or media replacement.
This depends on the quality of the feed water, the effectiveness of the earlier RO filtration stages, and the amount of water being prepared. In practice, it is worth regularly checking the quality of the water after demineralization and planning service based on that.
Yes, it is a complete kit prepared for installation and operation. The set includes both the filtration components and the accessories needed for connection.
Sam zestaw do demineralizacji wody spisał się bardzo dobrze – części solidne, łatwo złożyć i zaczęło działać od razu. Paczka była solidnie zapakowana i dotarła do mnie po 3 dniach, więc nie było źle. Jestem zadowolony z efektu i pewnie kupiłbym ponownie.
Bardzo rzeczowe odpowiedzi na pytania.
Szybka dostawa,kompleksowa obsługa oraz filtr jak na razie działający bez zarzutów mogę godnie polecić
szybka dostawa, wysoka jakość
zestaw zgodny z opisem, świetny kontakt z właścicielem sklepu.
Świetnie usuwa zanieczyszczenia resztkowe. Dostawa w terminie świetna strona internetowa.
DEMI Set for final demineralization of water with high-quality MB400 ROHM HAAS resin. Particularly recommended in marine aquaristics as the last stage after the RO osmotic filter. The set includes a clear 10" housing with a 1/4" thread, a disassemblable multi-fill canister, resin (pre-filled), a key, a mounting plate, as well as quick couplings, clips, and a hose.