# Flue Adapter Vaillant Adapter 80/125 PP for Ventilation/Duct Connection

**URL:** https://aio.lv/en/product--vaillant-0020276091--11827016
**Data updated:** 2026-03-09 11:16 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** Vaillant
**Manufacturer code:** 0020276091
**EAN:** 3532041749473
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 50.99 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 42.14 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--vaillant-0020276091--11827016

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Flue adapter Vaillant Adapter 80/125 PP designed for connecting round ducts with 80 mm and 125 mm diameters. Manufactured by Vaillant from polypropylene (PP), it provides a reliable transition between different flue or ventilation pipe sizes. Suited for domestic boiler and ventilation installations where an 80-to-125 mm connection or reduction is required.

## Long description

Flue Adapter Vaillant Adapter 80/125 PP for Ventilation/Duct Connection is a polypropylene transition piece designed to join round ducts of 80 mm and 125 mm diameters. Manufactured by Vaillant, this adapter enables a secure mechanical and airflow connection between pipes of different sizes used in domestic boiler flues and ventilation systems. The smooth internal surface and dimensional compatibility with standard round ductwork help maintain airflow efficiency while simplifying installation where size reduction or enlargement is necessary.
Advantages
The adapter is made from durable polypropylene (PP), offering chemical and corrosion resistance suitable for exhaust and ventilation applications. Its molded construction provides consistent dimensions for snug fits and reduced air leakage at joints. Lightweight and easy to handle, the adapter minimizes installation time compared with custom-fabricated transitions. Compatibility with commonly used round duct sizes ensures versatile use in residential HVAC and boiler flue connections.
Suitable for
Connecting an 80 mm round duct to a 125 mm round duct in ventilation systems
Adapting boiler flue pipes where a size transition is required
Domestic HVAC ductwork modifications and repairs
Key specifications
Material: polypropylene (PP)
Connection diameters: 80 mm and 125 mm round
Function: duct size transition / adapter for flue and ventilation
Suitable environment: residential boiler flues and ventilation systems
Weight: lightweight for manual handling (manufacturer standard)
How to use
Fit the larger end of the adapter onto the 125 mm duct and the smaller end onto the 80 mm duct, ensuring both ends are fully seated. Where required, apply appropriate sealing tape or silicone-approved sealant around the joints to improve airtightness and prevent condensate or exhaust leakage. Secure the connection with suitable clamps or fasteners compatible with PP material, and verify that the assembled run maintains proper slope and clearance according to the installation guidelines of the heating or ventilation equipment.
Usage recommendations
Use the adapter only in applications consistent with polypropylene material limits and local building codes. Avoid direct exposure to open flames or temperatures above the maximum operating range specified by the ventilation or boiler manufacturer. Inspect joints after installation and periodically during system maintenance to ensure seals and fastenings remain intact.

## FAQ

### How much does the Flue Adapter Vaillant Adapter 80/125 PP cost, and is it available for purchase?

The price is 50.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 19 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 15.07.2026 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 Vaillant 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 Vaillant 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/11827016/67228367_large.webp