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

**URL:** https://aio.lv/en/product--aquanatura-tn-45186--12013392
**Data updated:** 2026-03-11 20:47 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** AquaNatura
**Manufacturer code:** TN-45186
**EAN:** 5904479451866
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.99 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 4.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--aquanatura-tn-45186--12013392

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

AquaNatura filter brush cartridge (model TN-45186) for aquarium filtration systems. Physical cartridge with 12 cm diameter and 40 cm length, made from polypropylene (PP) and stainless steel (SS) components. Designed to trap debris and support mechanical filtration in internal or external filter housings compatible with the specified dimensions. Suitable for routine maintenance and water clarity improvement.

## Long description

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.

## FAQ

### How much does the AquaNatura TN-45186 filter brush 12x40 cm cost, and is it available for purchase?

The price is 4.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All AquaNatura products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized AquaNatura service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12013392/68510243_large.webp