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WZM10B Top Filter is a softening cartridge for BIG BLUE 10" housings and HHBB-10B treatment stations. It contains fine-grained ion-exchange resin that helps reduce water hardness and improve its quality. It supports the protection of household appliances against limescale buildup, may reduce detergent consumption, and enhances the comfort of using cold drinking and utility water.
WZM10B Top Filter BIG BLUE 10" softening cartridge is an efficient filter cartridge for domestic and utility installations, designed for softening cold drinking water and general-purpose water. It fits BIG BLUE 10" inline housings and HHBB-10B water treatment stations. The fine-grained ion exchange resin used helps reduce water hardness, limit limescale buildup, and support daily water treatment as part of a broader water filtration system. It is a practical water filter wherever equipment protection, greater user comfort, and better installation operation matter.

The WZM10B model belongs to the WZM series of cartridges, which effectively clean and soften drinking and utility water. The cartridge design is based on fine-grained ion exchange resin, allowing the product to help reduce the effects of hard water in everyday use.
The cartridge is intended for use in standard BIG BLUE 10" inline housings and in the HHBB-10B water treatment station. This solution is especially useful in places where reducing scale deposits and improving the operating conditions of devices that come into contact with cold water is important.
The cartridge uses fine-grained ion exchange resin, which supports the water softening process. In practice, this means reducing water hardness and decreasing the tendency of scale to precipitate, which can negatively affect the installation, fittings, and household appliances.
The WZM10B works well as part of a home or utility cold water treatment system. It can be part of a larger filtration setup, similar to other solutions used in advanced installations, such as an osmotic filter, reverse osmosis filter, reverse osmosis system, or reverse osmosis unit, although its primary function remains softening and improving the operating parameters of cold water.
By reducing the impact of hard water, the cartridge can positively affect the comfort of everyday installation use. Less deposit buildup means not only cleaner components that come into contact with water, but also more predictable operation of water-heating devices and household appliances.
The cartridge must not be used for water of unknown origin or microbiologically contaminated water.
To extend the service life of the WZM cartridge, a housing with a foam cartridge from the WP series or a string-wound WS cartridge should be installed before it.
Proper water preparation before the softening cartridge is very important for its durability and performance. Preliminary mechanical filtration helps reduce the amount of contaminants that may shorten the service life of the filtration medium, which is why using a WP foam cartridge or WS string-wound cartridge before the WZM10B is an important part of proper operation.
The product is intended for cold drinking water and general-purpose water. To maintain correct operating parameters, the permissible temperature range should be observed and the cartridge should be replaced according to the degree of wear and the actual contamination of the water.
The WZM10B can be used wherever an installation requires reducing the hardness of cold water and protecting equipment from the effects of limescale buildup. It is a practical choice for households, service points, and places where stable operation of BIG BLUE 10" inline housings matters.
The cartridge is a good complement to systems where multi-stage water treatment is important, especially when the goal is to improve the quality of utility water and support other components of the filtration installation.
* Service life depends on the level of water contamination.
| Parameter | Value |
|---|---|
| Product No. | WZM10B |
| Filtration accuracy | < 10 microns |
| Length | 10" |
| Diameter | 4½" |
| Service life | max. 1750 L * |
| Operating temperature | 2-42 °C |
The cartridge is intended for 10-inch BIG BLUE inline housings and for the HHBB-10B water treatment station.
The WZM10B model uses fine-grained ion exchange resin, which is responsible for water softening.
Yes, the cartridge is intended for cold drinking water and general-purpose water. However, it must not be used for water of unknown origin or microbiologically contaminated water.
The cartridge helps protect the heating elements of household appliances against limescale, can reduce equipment failure, lower detergent consumption, and improve the comfort of using water in everyday applications.
Yes. To extend the service life of the WZM cartridge, a housing with a foam cartridge from the WP series or a string-wound WS cartridge should be installed before it.
The maximum service life of the cartridge is 1750 liters. The actual operating time depends on the level of water contamination.
The permissible operating temperature is from 2 to 42 °C, which is why the product is intended for cold water treatment.
The filtration accuracy of the WZM10B cartridge is below 10 microns.
Yes, cartridges from the WZM series are resistant to chemicals and are used for treating cold drinking water or general-purpose water.
WZM10B Top Filter is a softening cartridge for BIG BLUE 10" housings and HHBB-10B treatment stations. It contains fine-grained ion-exchange resin that helps reduce water hardness and improve its quality. It supports the protection of household appliances against limescale buildup, may reduce detergent consumption, and enhances the comfort of using cold drinking and utility water.