Filter Brush Cartridge AquaNatura TN-45186 — diameter 12 cm, length 40 cm, PP+SS

The AquaNatura filter brush cartridge TN-45186 is a mechanical filtration element designed for aquarium filter housings with an internal diameter of 12 cm and a length of 40 cm. Constructed from polypropylene brush media combined with stainless steel components, this cartridge captures suspended particles, uneaten food, plant debris and other solid waste to help maintain water clarity and reduce load on biological and chemical stages of filtration. The straight cylindrical form factor fits into compatible internal or external filter chambers that accept its dimensions.

Advantages

The polypropylene brush media provides a durable, washable surface that traps a wide range of particle sizes while allowing good water flow. Stainless steel parts add structural stability and corrosion resistance where metal supports are required. The cartridge’s size and tubular design make it easy to insert and remove for routine maintenance, and its mechanical action helps prolong the life and performance of downstream filter media by preventing premature clogging.

Suitable for

• Home and office aquariums requiring mechanical particle removal
• Internal and external filter housings compatible with a 12 cm diameter and 40 cm length cartridge
• Routine maintenance cycles where washable filter media is preferred
• Freshwater and lightly brackish aquaria focusing on water clarity

Key specifications

• Filter type: mechanical brush cartridge
• Outer diameter: 12 cm
• Length: 40 cm
• Primary material: polypropylene brush media
• Support material: stainless steel components for reinforcement
• Shape: cylindrical tubular cartridge
• Flow characteristic: designed for unrestricted axial flow through brush media

How to use

Fit the cartridge into a compatible filter chamber oriented along the chamber axis so that water is forced through the brush media. Follow the filter manufacturer’s instructions for correct orientation and securing method. During installation ensure a snug fit to avoid bypass flow around the cartridge. Inspect the cartridge periodically and rinse in aquarium water when visibly dirty to restore performance; do not use tap water with strong disinfectants or hot water that may damage the media or stainless steel parts.

Usage recommendations

For optimal performance, combine this mechanical cartridge with biological and chemical media in subsequent filter stages. Schedule visual inspections every 1–4 weeks depending on bioload and feedings, and perform rinsing in removed aquarium water to preserve beneficial bacteria. Replace the cartridge if brush fibers show significant wear or if stainless steel parts show signs of corrosion that could affect function.