# Activated carbon filter ZOLUX model 42857 — replacement filter for aquarium and terrarium air/water filtration

**URL:** https://aio.lv/en/product--zolux-42857--11983130
**Data updated:** 2026-03-11 16:38 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** ZOLUX
**Manufacturer code:** 42857
**EAN:** 8003507963023
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 4.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zolux-42857--11983130

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

ZOLUX activated carbon filter model 42857 is a replacement filtration cartridge designed to adsorb impurities, odors and discoloration in aquarium and terrarium systems. The filter contains activated carbon media to improve water clarity and neutralize organic compounds; it is intended for routine cartridge replacement in compatible filter housings to maintain water quality and reduce odors.

## Long description

ZOLUX activated carbon filter model 42857 is a replacement filtration cartridge designed for aquarium and terrarium air and water filtration systems. The cartridge contains activated carbon media that adsorbs dissolved organic compounds, discoloration and odors to help maintain clearer water and reduce airborne smells in enclosed habitats. It is intended for routine replacement in compatible filter housings to preserve filtration efficiency and support stable environmental conditions for aquatic and terrestrial animals.
Advantages
The activated carbon media provides broad adsorption of organic impurities and color-causing substances without introducing chemicals into the filtered medium. The cartridge format allows straightforward replacement and minimizes direct handling of spent media. The product is compatible with standard replacement cycles, supporting consistent performance and predictable maintenance intervals for hobbyist and professional setups.
Suitable for
 Freshwater aquariums and terrariums requiring improved water clarity
 Systems where reduction of organic odors and discoloration is desired
 Routine filter cartridge replacement in compatible housing units
 Enclosures with fish, amphibians or invertebrates where passive chemical adsorption is needed
Key specifications
 Media type: activated carbon adsorption media
 Application: air and water filtration in aquaria and terraria
 Form factor: replaceable cartridge designed for drop-in installation
 Primary functions: adsorption of organic compounds, odor reduction, removal of discoloration-causing substances
 Intended use: routine replacement to maintain filtration performance
How to use
Switch off the filtration unit and follow the filter housing manufacturer’s instructions to access the cartridge compartment. Remove the spent cartridge and dispose of it according to local waste regulations. Insert the replacement activated carbon cartridge into the housing ensuring correct orientation and a secure fit, then reassemble the unit and restart the filtration system. Monitor water clarity and odor levels after installation and adhere to a regular replacement schedule recommended for your specific system and stocking levels.
Usage recommendations
Replace the activated carbon cartridge at manufacturer-recommended intervals or sooner if water discoloration or odors reappear. Avoid using activated carbon simultaneously with certain chemical treatments unless directed by the treatment instructions, as adsorption can reduce treatment effectiveness. Store unused cartridges in a dry, cool place away from direct sunlight to preserve adsorption capacity.

## FAQ

### How much does the Activated carbon filter ZOLUX 42857 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 — 70 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 07.07.2026 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 ZOLUX 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 ZOLUX 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/11983130/67438695_large.webp