# Round Duct UN FI150 1.5 m — UN KO150-15, circular ventilation duct 150 mm

**URL:** https://aio.lv/en/product--un-ko150-15--11947165
**Data updated:** 2026-03-11 13:43 (EET)
**Category:** Ventilation Filters
**Manufacturer:** UN
**Manufacturer code:** KO150-15
**EAN:** 5905033299504
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 26.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 21.89 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--un-ko150-15--11947165

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Round ventilation duct UN FI150 1.5 m (model KO150-15) is a 150 mm diameter circular duct section supplied as a single 1.5-meter piece. Designed for mechanical or natural ventilation systems, it connects with compatible 150 mm fittings and ducts. Suitable for air distribution in residential or light-commercial installations, HVAC repairs and extensions.

## Long description

Round ventilation duct UN FI150 1.5 m (circular ventilation duct 150 mm) is a single-piece, straight round duct section with a nominal internal diameter of 150 mm and a length of 1.5 metres. Manufactured for use in mechanical and natural ventilation systems, this duct section is intended to connect with other 150 mm components to form air distribution runs in residential and light-commercial installations, or to be used for repair and extension of existing HVAC ducting.
Advantages
This round duct offers a consistent circular cross-section that supports uniform airflow and reduces turbulence compared with irregular duct shapes. The standardized 150 mm diameter ensures compatibility with a wide range of fittings, grilles and inline components. Supplied as a single 1.5 m length, it simplifies installation by limiting the number of joints and can speed up extension or replacement work. The smooth internal surface helps limit dirt accumulation and pressure loss under typical ventilation operating conditions.
Suitable for
 Supply and extract air distribution in residential ventilation systems
 Light-commercial ventilation and HVAC branch runs
 Repairing or extending existing 150 mm ductwork
 Connecting fans, silencers or grilles sized for 150 mm ducts
Key specifications
 Nominal internal diameter: 150 mm
 Length: 1.5 m
 Cross-section: circular
 Intended connection size: components for 150 mm ducts
 Application: mechanical and natural ventilation air distribution
How to use
Measure and plan the required duct run, allowing for fittings and transition pieces where needed. Cut or position the 1.5 m round duct sections to align with adjacent pieces and secure connections using the appropriate coupling method for the system (clamps, screws, or compatible couplers). Ensure end seals and joints are tight to minimise air leakage; where necessary, apply suitable sealant or adhesive recommended for ventilation ductwork. Support the duct at regular intervals with hangers or brackets to prevent sagging and to maintain slope where condensate drainage is required.
Usage recommendations
Use this 150 mm round duct in conjunction with compatible 150 mm fittings, flexible connectors for vibration isolation, and accessories selected for the intended airflow and installation environment. Verify local ventilation codes and manufacturer guidance for airflow capacity, support spacing and sealing methods to achieve efficient and compliant system performance.

## FAQ

### How much does the UN Round Duct FI150 1.5 m KO150-15 cost, and is it available for purchase?

The price is 26.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 13.07.2026 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 UN 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 UN 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/11947165/67390669_large.webp