# Viteco ventilation duct extension DN 125 × 300 mm — adapter/extension sleeve

**URL:** https://aio.lv/en/product--viteco-v1gtpo-dn125x300--11982752
**Data updated:** 2026-03-11 16:37 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** Viteco
**Manufacturer code:** V1GTPO-DN125X300
**EAN:** 5906660342168
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.49 €
**Prices and availability valid until:** 2026-08-22 23:59
**Price without VAT (21%):** 11.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--viteco-v1gtpo-dn125x300--11982752

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.08.2026 | free |
| Pickup points | 12.08.2026 | 1.79 EUR |
| Courier delivery to door | 12.08.2026 | 4.99 EUR |

## Summary description

Viteco DN 125 × 300 mm duct extension designed as an adapter sleeve for ventilation anemostats. The metal/plastic extension (as per product specification) provides a 300 mm extension length with a 125 mm nominal diameter (DN 125) to connect or extend ventilation ducts, grilles or diffusers. Suitable for HVAC installation, air distribution adjustment and repair work in residential and commercial ventilation systems.

## Long description

Viteco ventilation duct extension DN 125 × 300 mm is an adapter/extension sleeve designed to connect or extend ventilation ducts, grilles and diffusers in HVAC systems. With a nominal diameter of 125 mm (DN 125) and a 300 mm extension length, this component provides a reliable transition between anemostats, registers and round ductwork. Constructed from metal and plastic components as specified by the manufacturer, the sleeve supports air distribution adjustment, simple extension tasks and repair work in both residential and commercial ventilation installations.
Advantages
The Viteco DN 125 × 300 mm extension sleeve offers dimensional compatibility with standard DN 125 components and a compact 300 mm extension that preserves airflow characteristics. Its mixed metal/plastic construction balances durability and ease of handling during installation. The adapter form factor simplifies connecting round ductwork to anemostats and diffusers without requiring complex fittings, helping reduce installation time and material waste.
Suitable for
Extending or adapting round ductwork with a nominal diameter of 125 mm
Connecting ventilation anemostats, grilles and diffusers to ducts
Air distribution adjustments and balancing in HVAC systems
Repair or replacement of short duct sections in residential or commercial ventilation
Key specifications
Nominal diameter: 125 mm (DN 125)
Extension length: 300 mm
Construction materials: metal and plastic components (manufacturer specification)
Shape: cylindrical adapter/extension sleeve for round ducts
Compatibility: designed for use with standard DN 125 anemostats, grilles and round ducts
How to use
Prepare mating duct ends or anemostat connections by ensuring they are clean and free of burrs. Slide the Viteco extension sleeve onto the existing round duct or into the diffuser/anemostat housing until properly seated. Secure the connection using suitable clamps, sealant or screws as required by the installation context and local building codes. Verify alignment and make any necessary adjustments to maintain unobstructed airflow through the sleeve. After installation, perform a visual inspection and, if available, an airflow check to ensure proper integration with the ventilation system.
Usage recommendations
Use corrosion-resistant fasteners for installations in humid environments and apply duct sealant or tape at joints to minimize air leakage. Confirm compatibility with existing DN 125 components before fitting, and follow applicable HVAC installation standards and safety procedures during modification or repair work.

## FAQ

### How much does the Viteco DN 125 × 300 mm duct extension cost, and is it available for purchase?

The price is 14.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 27 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 07.08.2026 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 Viteco 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 Viteco 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

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