# SpiroFlex 125 mufa (oc) — duct connector for Ø125 mm ventilation ducts

**URL:** https://aio.lv/en/product--spiroflex-m125-oc--11828313
**Data updated:** 2026-03-09 11:18 (EET)
**Category:** Ventilation Filters
**Manufacturer:** SpiroFlex
**Manufacturer code:** M125-OC
**EAN:** 5907520988571
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--spiroflex-m125-oc--11828313

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

SpiroFlex 125 mufa (oc) is a duct connector designed for use with Ø125 mm ventilation and air-conditioning round ducts. Manufactured for secure mechanical joining of circular metal ducts, it ensures aligned coupling and reliable airflow path. Suitable for HVAC installations, repairs and ductwork extensions in residential and commercial systems.

## Long description

SpiroFlex 125 mufa (oc) is a duct connector designed for Ø125 mm round ventilation and air-conditioning ducts. The connector provides a straightforward mechanical coupling between circular metal ducts, maintaining alignment and a continuous airflow path. It is intended for HVAC installations, ductwork extensions and repair work in residential and commercial ventilation systems, offering a compact and compatible solution for joining standard 125 mm ducts.
Advantages
The connector delivers a stable mechanical joint that reduces the risk of misalignment and air leakage at duct connections. Its geometry is made to match Ø125 mm round ducts, enabling quick assembly without complex tools. The product supports reliable airflow continuity and is suitable for repeated installation and removal when access or maintenance is required.
Suitable for
 Joining Ø125 mm round metal ventilation ducts
 HVAC installation and commissioning
 Duct repairs and section replacements
 Extending existing ventilation runs
 Temporary or permanent duct connections in residential and commercial systems
Key specifications
 Nominal diameter: Ø125 mm round ducts
 Function: mechanical connector for circular metal ducts
 Application: ventilation and air-conditioning ductwork
 Compatibility: standard 125 mm round duct profiles
 Construction: designed for repeated assembly and disassembly
How to use
Align the two duct ends to be joined and slide the SpiroFlex 125 mufa (oc) over the mating profiles until fully seated. Ensure concentric alignment so the connector fits evenly around both duct ends. Secure the joint as required by the installation method—this may include applying screws, clamps or sealing tape according to local practice and airtightness needs. Verify the connection visually and by hand to confirm stable seating and absence of gaps that could cause leakage.
Usage recommendations
For best results, use the connector with matching Ø125 mm metal ducts and follow local ventilation installation standards. Where airtightness is required, complement the mechanical joint with suitable sealing (foil tape, mastic) and fasteners. Inspect joints after installation and during maintenance to ensure continued alignment and leak-free performance.

## FAQ

### How much does the SpiroFlex 125 mufa (oc) duct connector cost, and is it available for purchase?

The price is 5.99 € (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 06.07.2026 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/11828313/67229350_large.webp