# Air Stone Cylinder 2.5 cm, 2 pcs — Hagen Kamień Napowietrzający WALEC 2.5 cm

**URL:** https://aio.lv/en/product--hagen-vat001962--12055304
**Data updated:** 2026-03-12 19:38 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** Hagen
**Manufacturer code:** VAT001962
**EAN:** 015561109611
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hagen-vat001962--12055304

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Pickup points | 24.07.2026 | 1.89 EUR |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

Hagen air stone cylinder set (2 pcs) with 2.5 cm length for aquarium aeration. These cylindrical air stones diffuse airflow into fine bubbles when connected to an air pump and tubing, improving oxygenation and water circulation in freshwater and marine tanks. Suitable for creating gentle bubble streams near substrates, decorations, or plant zones.

## Long description

Hagen Air Stone Cylinder 2.5 cm set (2 pcs) is designed to diffuse air into fine bubbles for improved oxygenation and gentle water movement in freshwater and marine aquariums. The compact cylindrical stones connect to standard airline tubing and an external air pump to produce a steady stream of microbubbles that increases gas exchange at the water surface and supports circulation around plants, decorations and substrate.
Advantages
These air stones provide consistent bubble generation from a small footprint, allowing placement close to plants or decor without drawing attention. The cylinder shape yields an even distribution of airflow along its length, producing a uniform column of fine bubbles that enhances oxygen dispersion and reduces dead zones. The set includes two identical pieces for flexible placement or redundancy, and the durable material resists clogging under normal aquarium use.
Suitable for
 Improving oxygenation in freshwater aquariums
 Supplementing aeration in marine and reef tanks (non-technical aeration)
 Creating gentle bubble columns near plants, substrate or decorations
 Small to medium aquaria where compact aeration fittings are required
Key specifications
 Form factor: cylindrical air stone
 Length: 2.5 cm
 Quantity: 2 pieces per set
 Connection: compatible with standard aquarium airline tubing
 Material: porous diffusing medium suitable for underwater use
How to use
Connect one end of your airline tubing to the outlet of a suitable aquarium air pump and the other end to the air stone. Position the cylinder where aeration is needed — near the substrate, beside plants or behind decorations — and secure tubing to prevent dislodging. Start the air pump and allow a few minutes for steady microbubble flow to establish. Periodically check the stones for reduced bubble output; cleaning or replacement may be necessary if flow becomes uneven.
Usage recommendations
For best results use an air pump with adjustable flow to match tank size and desired bubble intensity. Inspect and gently clean air stones every few months by rinsing in dechlorinated water or replacing them when porosity declines. Avoid using adhesive or sealing materials that could obstruct the porous surface.

## FAQ

### How much does the Hagen Air Stone Cylinder 2.5 cm, 2 pcs 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 — 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 21.07.2026 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/12055304/67541346_large.webp