# Hagen sponge filter cartridge U1 (MPN 010579) replacement for Fluval internal filters

**URL:** https://aio.lv/en/product--hagen-010579--12052278
**Data updated:** 2026-03-12 19:35 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** Hagen
**Manufacturer code:** 010579
**EAN:** 015561104852
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 4.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hagen-010579--12052278

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Sponge filter cartridge Hagen U1 (MPN 010579) is a replacement foam media designed for compatible Fluval internal aquarium filters. The porous sponge provides mechanical and biological filtration by trapping debris and offering surface area for beneficial bacteria. Suitable for routine maintenance and cartridge replacement to maintain water clarity and aquarium health.

## Long description

Hagen sponge filter cartridge U1 is a replacement foam media engineered for compatible Fluval internal aquarium filters. The porous foam captures suspended particles and offers extensive surface area for nitrifying bacteria, supporting mechanical and biological filtration within small to medium aquaria. The cartridge is intended for routine maintenance and periodic replacement to help maintain water clarity and stable biological conditions.
Advantages
The open-cell structure of the sponge provides efficient debris retention while allowing water flow and oxygen exchange to sustain beneficial bacteria. It is dimensioned to fit specific internal filter housings, enabling straightforward cartridge swaps without modifying the existing filter assembly. The material is durable under normal aquarium conditions and can be rinsed to extend service life between replacements.
Suitable for
Replacement of worn or clogged foam media in compatible Fluval internal filters
Routine maintenance to restore mechanical filtration and biological surface area
Small to medium freshwater and lightly stocked community aquariums
Key specifications
Filter type: open-cell foam cartridge providing mechanical and biological filtration
Compatibility: designed for use with matching model internal aquarium filters from Fluval
Function: traps particulate waste and supplies surface area for beneficial bacteria colonization
Material: resilient polyurethane foam suitable for aquatic environments
Maintenance: washable to remove trapped debris; replace when degraded or permanently clogged
How to use
Turn off and unplug the filter before performing any maintenance. Remove the filter housing and take out the old sponge cartridge following the filter manufacturer’s access procedure. Rinse the replacement sponge gently in dechlorinated water or aquarium water to remove dust from packaging and to avoid killing beneficial bacteria. Insert the Hagen U1 sponge cartridge into the filter housing in the same orientation as the original part, reassemble the filter, and restart the unit. Observe water flow and check for leaks after reinstallation.
Usage recommendations
Rinse the sponge during regular maintenance using aquarium water rather than tap water to preserve bacterial colonies. Replace the cartridge when mechanical filtration declines, when the foam shows signs of wear or compression, or according to your regular maintenance schedule to maintain water clarity and biological balance.

## FAQ

### How much does the Hagen U1 sponge filter cartridge (010579) cost, and is it available for purchase?

The price is 5.49 € (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 14.07.2026 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 Hagen 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 Hagen 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/12052278/67538373_large.webp