# Connection Piece with Joint SPC DUCO D180/D160 (M/M) — duct transition adapter

**URL:** https://aio.lv/en/product--spc-0000-4725--12376621
**Data updated:** 2026-04-26 20:48 (EEST)
**Category:** Other goods
**Manufacturer:** SPC
**Manufacturer code:** 0000-4725
**EAN:** 5425037156745
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.99 €
**Prices and availability valid until:** 2026-11-13 23:59
**Price without VAT (21%):** 14.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--spc-0000-4725--12376621

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 28.10.2026 | free |
| Pickup points | 02.11.2026 | 1.99 EUR |
| Courier delivery to door | 02.11.2026 | 4.99 EUR |

## Summary description

SPC DUCO connection piece with joint D180/D160 (M/M) is a duct transition adapter designed to connect circular ventilation ducts of 180 mm and 160 mm diameters. The M/M joint configuration provides a mechanical male-to-male connection for secure coupling. Suitable for HVAC installations, air distribution systems and ventilation retrofits where diameter reduction and reliable sealed joints are required.

## Long description

SPC DUCO Connection Piece with Joint D180/D160 (M/M) is a duct transition adapter designed to join circular ventilation ducts with 180 mm and 160 mm diameters. The adapter provides a male-to-male joint configuration that enables a tight mechanical connection between different-sized round ducts, facilitating airflow continuity and reducing leakage at the junction. It is intended for use in HVAC installations, air distribution networks and ventilation retrofits where a reliable diameter reduction and sealed joint are required.
Advantages
The connection piece offers a straightforward mechanical coupling that simplifies installation without the need for complex fittings. Its male-to-male joint design promotes a secure fit and helps maintain duct alignment during assembly. The adapter is compatible with standard circular duct systems and supports reliable air flow transfer between sections with minimal pressure loss when installed correctly.
Suitable for
Connecting a 180 mm circular duct to a 160 mm circular duct in HVAC systems
Retrofitting existing ventilation networks where diameter reduction is required
Air distribution branches in residential and light commercial ventilation installations
Temporary or permanent ducting changes during renovation or repair works
When it may not be suitable
This adapter is intended specifically for circular ducts of the stated diameters; it is not suitable for non-circular duct profiles, flexible ducts that require special clamps, or systems that demand a flanged or gasketed airtight connection. For applications requiring sound attenuation, thermal insulation, or fire-rated components, additional products or specially designed accessories should be used alongside or instead of this simple mechanical adapter.
Key specifications
Connection type: male-to-male joint
Input diameter: 180 mm (round)
Output diameter: 160 mm (round)
Material: suitable for standard ventilation ductwork (compatible with common metal/plastic circular ducts)
Application: duct transition / diameter reduction for ventilation systems
How to use
Ensure both duct ends are clean, free of burrs and aligned. Slide the male ends of the adapter into the corresponding duct sections so that the connection seats fully. Where required by the installation, secure the joint with appropriate clamps, rivets or metal tape to prevent axial movement and air leakage. Inspect the joint visually and, if necessary, perform a leak test according to the ventilation system procedures. Follow local codes and HVAC best practices when integrating into larger duct networks.
What to consider before purchase
Verify that your ducts are circular and measure nominal external diameters to confirm compatibility with 180 mm to 160 mm transition
Check material compatibility with your existing ductwork (metal to metal, metal to plastic) and whether additional clamps or sealants are needed
Confirm whether your project requires airtight gaskets, thermal insulation, or acoustic treatment that this adapter does not provide
Assess installation space and access to ensure the adapter can be fitted and secured properly
Usage recommendations
For durable performance, install the adapter in straight, well-supported duct runs and secure with suitable clamps or tape. Where airtightness is critical, add appropriate sealing tape or mastic at the joint and consider supporting the duct to avoid stress at the transition. If the system requires noise reduction or insulation, combine the adapter with separate attenuation or insulating elements designed for circular ducts.

## FAQ

### How much does the SPC DUCO Connection Piece D180/D160 (M/M) cost, and is it available for purchase?

The price is 17.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 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 28.10.2026 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 SPC 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 SPC 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/12376621/70288116_large.webp