# Water treatment station VIESSMANN AquaStilla 25 Smart (S) – compact residential water conditioning unit

**URL:** https://aio.lv/en/product--viessmann-7913469--12101131
**Data updated:** 2026-03-17 09:06 (EET)
**Category:** Water Filters
**Manufacturer:** VIESSMANN
**Manufacturer code:** 7913469
**EAN:** 4054465948380
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 077.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 890.90 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--viessmann-7913469--12101131

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

VIESSMANN AquaStilla 25 Smart (S) is a compact water treatment station designed for residential use. The unit provides centralized water conditioning, integrating components for filtration and water quality management. Suitable for supplying treated water to a single-family home or small property, it simplifies installation and ongoing maintenance while ensuring consistent potable water performance.

## Long description

VIESSMANN AquaStilla 25 Smart (S) is a compact residential water conditioning unit designed to provide centralized water treatment for single-family homes and small properties. The station integrates filtration and water quality management components into a single housing, simplifying installation and day-to-day operation. Designed for indoor installation near the main water inlet, the unit delivers treated potable water to household systems while maintaining a reduced footprint compared with separate components.
Advantages
The AquaStilla 25 Smart (S) combines mechanical filtration and water conditioning in a compact assembly to reduce installation complexity and save space. Built for routine residential requirements, it supports consistent water quality through integrated controls and service access points that facilitate maintenance. The product's compact dimensions and modular connections make it compatible with standard domestic plumbing layouts, and the enclosed design helps protect internal components from dust and accidental damage.
Suitable for
Single-family homes and small residential properties
Primary domestic water supply line treatment
Pre-treatment before point-of-use devices such as water heaters and kitchen taps
Renovation projects where space-saving water conditioning equipment is required
Key specifications
Compact cabinet-style housing suitable for indoor installation
Integrated filtration stages for removal of particulates and conditioning media
Connections compatible with standard residential plumbing
Service access for filter replacement and routine maintenance
Designed to provide potable water quality for a single dwelling
How to use
Install the AquaStilla 25 Smart (S) near the main water inlet in a frost‑protected interior space and connect to the household plumbing according to local regulations and installation guidelines. Commission the unit following the manufacturer's instructions, including flushing and any required media activation procedures. Regularly inspect service indicators and perform scheduled maintenance such as filter cartridge replacement and media renewal to preserve treatment performance. If a pressure regulator or bypass is present, set it as instructed to ensure correct operating pressures.
Usage recommendations
Follow local water quality regulations and the manufacturer's service intervals. Use qualified plumbers for installation and maintenance, and keep a record of filter changes and servicing to ensure continuous potable water performance.

## FAQ

### How much does the VIESSMANN AquaStilla 25 Smart (S) water treatment station cost, and is it available for purchase?

The price is 1,077.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 15.07.2026 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, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can VIESSMANN AquaStilla 25 Smart (S) water treatment station be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 VIESSMANN 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 VIESSMANN 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/12101131/67633017_large.webp