# Heatpex expansion box 3x75 HEATPEX ARIA, model 523375001

**URL:** https://aio.lv/en/product--heatpex-523375001--10765343
**Data updated:** 2026-03-07 18:02 (EET)
**Category:** Ventilation Filters
**Manufacturer:** Heatpex
**Manufacturer code:** 523375001
**EAN:** 5908226240024
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 37.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 30.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--heatpex-523375001--10765343

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Heatpex expansion box 3x75 HEATPEX ARIA (model 523375001) is a metal/plastic junction and distribution box designed for connecting three 75 mm pipes or ducts. It serves as a compact manifold for HVAC or ventilation systems, providing organized routing and access for maintenance. Suitable for installation in residential or commercial ventilation networks.

## Long description

The Heatpex expansion box 3x75 HEATPEX ARIA, model 523375001, is a compact metal and plastic junction and distribution box designed to connect three 75 mm ventilation pipes or ducts. Intended for use in HVAC and ventilation systems, this box provides an organized connection point that simplifies routing, inspection, and maintenance while maintaining a neat installation in residential and commercial applications.
Advantages
The combination of metal and plastic construction offers mechanical strength where needed and corrosion resistance in internal areas. Its three-branch layout for 75 mm ducts enables compact manifold-style distribution, reducing the number of visible connections and saving space. The unit is designed for straightforward access during inspection and service, and its materials and shape support reliable long-term operation in typical indoor ventilation environments.
Suitable for
 Connecting and distributing three 75 mm ventilation ducts in residential ventilation systems
 Compact manifold point for small commercial HVAC installations
 Routing duct runs where space is limited or multiple branches are required
 Installation points that require periodic inspection and maintenance access
Key specifications
 Number of outlets: three branches for 75 mm ducts
 Construction: metal and plastic components for strength and corrosion resistance
 Function: junction and distribution box for ventilation ducts
 Application environment: indoor HVAC and ventilation networks in residential and commercial buildings
How to use
Install the expansion box at the chosen junction point in the ventilation route, ensuring it is positioned to allow access for future inspection. Secure the unit to the supporting structure following local installation practices and connect three 75 mm ducts to the corresponding ports using appropriate clamps or sealing methods to ensure airtight joints. Verify alignment and clearances before final fixation, and perform a leak and airflow test after installation to confirm correct operation.
Usage recommendations
Use the expansion box in dry indoor environments and avoid exposure to aggressive chemicals. Seal joints with suitable duct sealant or tape to maintain system efficiency. When installed in commercial or complex HVAC systems, incorporate the box into the overall ventilation design and follow applicable building and ventilation standards for safe and effective operation.

## FAQ

### How much does the Heatpex expansion box 3x75 HEATPEX ARIA 523375001 cost, and is it available for purchase?

The price is 37.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 31 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 16.07.2026 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 Heatpex 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 Heatpex 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/10765343/59998323_large.webp