# SpiroFlex adapter SX-TD80/125AV — duct transition 80 mm to 125 mm

**URL:** https://aio.lv/en/product--spiroflex-sx-td80125av--11827421
**Data updated:** 2026-03-09 11:17 (EET)
**Category:** Ventilation Filters
**Manufacturer:** SpiroFlex
**Manufacturer code:** SX-TD80/125AV
**EAN:** 5907520928423
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 34.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 28.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--spiroflex-sx-td80125av--11827421

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

SpiroFlex adapter SX-TD80/125AV is a duct transition accessory designed to connect circular ventilation ducts with 80 mm and 125 mm diameters. Manufactured by SpiroFlex, the adapter provides a secure mechanical join between different-size round ducts, suitable for domestic and light commercial HVAC installations, exhaust systems, and ventilation repairs.

## Long description

SpiroFlex adapter SX-TD80/125AV — duct transition 80 mm to 125 mm is a round duct coupling designed to join circular ventilation ducts of different diameters. Made for mechanical connection between 80 mm and 125 mm round ducts, the adapter ensures a compact and secure transition in domestic and light commercial HVAC systems, exhaust lines and repair jobs where an accurate diameter change is required.
Advantages
The adapter provides a reliable mechanical fit that minimizes air leakage at the junction between two different-sized ducts. Its simple design allows quick installation without the need for special tools, and its rigid construction maintains duct alignment and prevents deformation at the connection point. The product is compatible with common round ductwork materials and helps preserve airflow characteristics by providing a smooth transition between diameters.
Suitable for
Connecting 80 mm round ventilation ducts to 125 mm round ducts
Domestic HVAC installations and exhaust systems
Light commercial ventilation and repair work
Ductwork modifications and retrofitting
Key specifications
Type: round duct transition adapter
Input diameter: 80 mm (circular)
Output diameter: 125 mm (circular)
Function: mechanical coupling for diameter change in ventilation systems
Application: indoor HVAC and exhaust ductwork
How to use
Insert the smaller end of the adapter into the 80 mm duct and the larger end into the 125 mm duct, ensuring concentric alignment. Secure the joint with suitable clamps, metal tape or rivets according to the duct material and local installation practice. Check the connection for gaps and apply sealant or additional tape if required to reduce leakage. Verify that airflow direction and mounting orientation match the system layout before final fastening.
Usage recommendations
For best performance, use the adapter with round ducts of matching wall thickness and material. Inspect connections periodically for looseness or corrosion in environments with high humidity or aggressive exhausts. When joining different materials, use compatible fasteners and sealants to maintain airtightness and prevent galvanic reactions.

## FAQ

### How much does the SpiroFlex adapter SX-TD80/125AV cost, and is it available for purchase?

The price is 34.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 14.07.2026 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 SpiroFlex 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 SpiroFlex 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/11827421/67228629_large.webp