# ALNOR RSCL-120-100 Ventilation Transition, Concentric Reducer, 120mm to 100mm

**URL:** https://aio.lv/en/product--alnor-zz-se-rscl-120-100--12511299
**Data updated:** 2026-06-10 09:32 (EEST)
**Category:** Ventilation Filters
**Manufacturer:** ALNOR
**Manufacturer code:** ZZ-SE-RSCL-120-100
**EAN:** 5905688097326
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-08-13 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--alnor-zz-se-rscl-120-100--12511299

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

The ALNOR RSCL-120-100 is a high-quality concentric ventilation transition designed for connecting circular air ducts of different diameters. This reducer allows for a smooth transition from a 120mm duct to a 100mm duct within HVAC systems. Manufactured from durable galvanized steel, it ensures reliable airflow and structural integrity in ventilation installations. This model is supplied without a gasket for standard duct connections.

## Long description

The ALNOR RSCL-120-100 is a professional-grade concentric ventilation transition designed to facilitate the connection of circular air ducts with differing diameters. This reducer provides a seamless transition from a 120mm duct to a 100mm duct, ensuring optimal airflow efficiency within residential or commercial HVAC systems. Constructed from high-quality galvanized steel, this component offers excellent durability and structural stability for long-term ventilation installations.
Advantages
The primary benefit of this concentric reducer is its ability to maintain consistent airflow dynamics while adapting duct sizes within a ventilation network. The use of galvanized steel provides superior resistance to corrosion and mechanical stress, making it a reliable choice for various environmental conditions. Its precise engineering ensures a secure fit, minimizing pressure drops and turbulence at the point of connection, which contributes to the overall energy efficiency of the ventilation system.
Suitable for
Connecting circular ventilation ducts of different sizes
Residential HVAC system installations
Commercial air handling and ventilation networks
Adapting ductwork in tight spaces where diameter changes are required
When it may not be suitable
This component is not suitable for systems requiring airtight seals without additional sealing materials, as it is supplied without a rubber gasket. It should not be used in environments with highly corrosive gases or extreme temperatures that exceed the specifications of galvanized steel.
Key specifications
Material: Galvanized steel
Connection type: Concentric reducer
Diameter: 120mm to 100mm
Gasket: Not included
How to use
To install the ALNOR RSCL-120-100, insert the reducer into the corresponding circular ducts. Ensure that the connection is properly aligned to maintain the concentric flow. Since this model does not include a factory-fitted rubber gasket, it is necessary to use appropriate sealing tape, mastic, or mechanical fasteners to ensure the joint is airtight and secure according to local building regulations and HVAC standards.
What to consider before purchase
Verify the diameter requirements of your existing ductwork
Ensure that the lack of a rubber gasket is acceptable for your specific installation needs
Confirm that the galvanized steel material is compatible with the intended environment
Usage recommendations
For optimal performance and to prevent air leakage, always apply professional-grade duct sealant or mechanical fasteners to the connection points during installation. Regularly inspect the joints for signs of wear or loosening to maintain system integrity.

## FAQ

### How much does the ALNOR RSCL-120-100 Ventilation Transition Reducer 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 — 71 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 20.07.2026 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 ALNOR 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 ALNOR 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

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