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BIG BLUE 20" string sediment filter for preliminary water filtration. Made of pure polypropylene fiber wound around a core, it effectively captures fine solid contaminants such as sand, silt, sludge, and rust. The gradually increasing density towards the core helps effectively trap sediments and protect the installation and devices.
FCPP10BB20 WaterRO string filter cartridge BIG BLUE 20" 10 micron is an efficient filter cartridge for pre-mechanical water filtration. It works well as a water filter in domestic and utility installations where protection of fittings, heating equipment, and components such as an reverse osmosis filter, osmosis filter or the entire water filtration system is important. Made of pure polypropylene fiber and designed with increasing density toward the core, it helps effectively retain sand, silt, sludge, and rust.

The FCPP10BB20 model is a sedimentary string cartridge designed to remove fine solid contaminants from water. Its task is to capture suspended matter and mechanical deposits before they reach downstream components of the system. It is a simple and effective way to improve system performance and reduce the risk of failures caused by solid particles present in water.
The cartridge is made of polypropylene string from pure polypropylene fiber, wound around a filter core. This design is no accident — it provides increasing filter density toward the core, so contaminants are captured gradually and efficiently throughout the full depth of the filter media.
The sediment cartridge is designed to purify water from fine fractions of solid contaminants. It effectively retains primarily:
This helps limit the transfer of deposits to further stages of water treatment and to devices connected to the installation.
The polypropylene string design is valued for its durability, resistance to typical conditions in mechanical filtration, and ability to effectively capture solid particles. Winding the fiber around the core creates a structure with gradually increasing density, which supports more precise retention of deposits.
In practice, this means that larger and finer contaminant fractions can be captured in layers before the water reaches subsequent treatment stages. This is especially important where reverse osmosis, a reverse osmosis system, or other solutions requiring as clean feed water as possible are in use.
The FCPP10BB20 cartridge is intended for pre-filtration of suspended matter and mechanical deposits. Its use helps protect water system components and devices exposed to contact with solid contaminants.
The cartridge is intended for pre-filtration of mechanical contaminants. To maintain high system performance of the water filtration system, the cartridge condition should be monitored and it should be replaced after a noticeable drop in flow or according to the service schedule adopted for a given installation.
| Model | FCPP10BB20 |
|---|---|
| Product name | WaterRO string filter cartridge BIG BLUE 20" 10 micron |
| Cartridge type | sediment, string |
| Purpose | pre-filtration of water |
| Filtration precision | 10 micron |
| Size | BIG BLUE 20" |
| Filter media | pure polypropylene fiber |
| Construction | polypropylene string wound around a filter core |
| Contaminants retained | sand, sludge, silt, rust |
| Construction features | increasing filter density toward the core |
| Installation use | protection of installations, household equipment and heating devices |
It is a sediment cartridge for pre-mechanical water filtration. Its purpose is to remove fine solid contaminants and protect downstream components of the installation.
The cartridge effectively captures sand, sludge, silt, and rust, which are typical mechanical deposits present in water.
Yes. This model is intended specifically for pre-filtration of suspended matter and mechanical deposits before further water treatment stages.
The cartridge is made of pure polypropylene fiber in the form of a string wound around a filter core.
This design supports more effective retention of contaminants throughout the full depth of the filter media and improves cartridge efficiency.
Yes, mechanical filtration is an important pre-stage before solutions such as an osmosis filter, a reverse osmosis filter, or a complete reverse osmosis system, because it helps reduce the inflow of deposits to later filtration stages.
The cartridge helps protect the water installation, household equipment, and heating devices from the negative impact of suspended matter and mechanical deposits.
The cartridge should be replaced when it is clearly dirty, water flow decreases, or when required by the maintenance schedule adopted for a given water filtration system.
BIG BLUE 20" string sediment filter for preliminary water filtration. Made of pure polypropylene fiber wound around a core, it effectively captures fine solid contaminants such as sand, silt, sludge, and rust. The gradually increasing density towards the core helps effectively trap sediments and protect the installation and devices.