# Filter Foam Cartridge insert for Tetra BF 400/600 Plus (model 9111)

**URL:** https://aio.lv/en/product--tetra-9111--12041446
**Data updated:** 2026-03-12 19:23 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** Tetra
**Manufacturer code:** 9111
**EAN:** 4004218134676
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 9.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tetra-9111--12041446

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Replacement foam cartridge designed for Tetra BF 400/600 Plus internal aquarium filters. This sponge insert (MPN 9111) provides mechanical filtration by trapping debris and particles, helping maintain water clarity and supporting biological filtration when used with filter media. Suited for routine maintenance and cartridge replacement in compatible Tetra filters.

## Long description

Replacement foam cartridge insert designed for Tetra BF 400/600 Plus internal aquarium filters. This foam sponge provides mechanical filtration by trapping debris, uneaten food and suspended particles, helping to maintain water clarity and contributing to a stable environment when used alongside biological filter media. The cartridge is shaped to fit the internal housing of compatible Tetra filters and is intended for regular maintenance and timely replacement to preserve filter performance.
Advantages
The foam material captures coarse and fine particulate matter without restricting water flow, supporting efficient mechanical filtration. Its porous structure allows water to pass through while retaining solids, which reduces clogging of subsequent filter media and prolongs overall filter life. The cartridge is easy to install and remove for cleaning or replacement, enabling straightforward routine maintenance of the Tetra BF 400/600 Plus filter system.
Suitable for
Routine replacement in Tetra BF 400/600 Plus internal aquarium filters
Mechanical filtration to remove visible debris and suspended particles
Pre-filtration stage before biological media to reduce clogging
Freshwater community tanks and planted aquaria requiring regular maintenance
Key specifications
Material: open-cell foam designed for aquarium filtration
Function: mechanical filtration (particle and debris retention)
Compatibility: shaped for insertion into compatible internal filter housings
Service: intended for periodic cleaning or replacement as part of routine maintenance
How to use
Turn off and unplug the filter before opening the housing. Remove the old foam cartridge and inspect the filter compartment for accumulated debris. Rinse the new foam cartridge in aquarium water (not tap water) to remove loose particles and then insert it into the filter housing in the same orientation as the original. Reassemble the filter, restore power, and check that water flow is normal. Replace or rinse the foam cartridge regularly according to tank load and manufacturer guidance to maintain filtration efficiency.
Usage recommendations
Rinse the foam cartridge in taken-from-tank water during routine water changes to preserve beneficial bacteria; replace the cartridge when it shows signs of permanent clogging, tearing, or when flow is noticeably reduced despite cleaning.

## FAQ

### How much does the Tetra BF 400/600 Plus foam cartridge 9111 cost, and is it available for purchase?

The price is 11.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 13.07.2026 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 Tetra 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 Tetra 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/12041446/67528450_large.webp