# Air stone cylinder 4.5 cm ZOLUX - aquarium aeration accessory

**URL:** https://aio.lv/en/product--zolux-22291--12068901
**Data updated:** 2026-03-12 21:48 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** ZOLUX
**Manufacturer code:** 22291
**EAN:** 3336023213217
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zolux-22291--12068901

## 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 air stone cylinder 4.5 cm is an aquarium aeration accessory designed to produce fine bubbles and improve water oxygenation. The compact cylindrical stone connects to standard airline tubing and is suitable for small to medium aquariums, under gravel filters, decoration zones or isolated oxygenation points. It supports healthier aquatic environment and circulation.

## Long description

ZOLUX air stone cylinder 4.5 cm is an aquarium aeration accessory designed to generate fine, consistent bubbles to improve oxygenation and water circulation in small to medium aquariums. This compact cylindrical air stone connects to standard airline tubing and can be positioned under gravel, near decorations, or at isolated points where additional aeration is needed. The device promotes more uniform oxygen distribution and supports biological filtration by enhancing surface agitation and gas exchange.
Advantages
The air stone produces a steady stream of fine bubbles that increase dissolved oxygen levels and encourage gentle water movement without creating strong currents. Its compact 4.5 cm cylinder shape allows flexible placement in tight spaces and beneath substrate or ornamentation. Constructed to work with common airline tubing, it is simple to install and maintain, and it helps reduce dead zones where debris and low oxygen can accumulate.
Suitable for
Small and medium freshwater aquariums requiring additional aeration
Under-gravel filter systems to improve circulation near the substrate
Decorative zones or planted areas that need localized oxygen supply
Quarantine or breeding tanks where stable oxygen levels are important
Key specifications
Shape: cylindrical air stone
Length: 4.5 cm
Compatibility: connects to standard airline tubing
Bubble type: fine bubble diffusion for improved oxygen transfer
Intended use: internal aquarium aeration
How to use
Connect the cylinder air stone to standard airline tubing and attach the other end to an air pump or manifold. Position the air stone where increased oxygenation or circulation is required — beneath gravel, beside decorations, or in a corner to create gentle upwelling. Secure tubing as needed to prevent movement. Start with moderate airflow and adjust the pump output to achieve a steady stream of fine bubbles without disturbing substrate or plants excessively. Regularly inspect the air stone for clogging and clean or replace it when bubble output decreases.
Usage recommendations
For best performance, use with an appropriately sized air pump for the aquarium volume and consider adding a check valve to prevent backflow. Periodic cleaning by soaking in clean water or gentle brushing will prolong effectiveness; replace the air stone if porosity substantially decreases.

## FAQ

### How much does the Air stone cylinder 4.5 cm ZOLUX cost, and is it available for purchase?

The price is 4.49 € (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/12068901/67553848_large.webp