# VIEGA adapter 15 mm to 3/4" (model 104771) for plumbing connections

**URL:** https://aio.lv/en/product--viega-104771--11178058
**Data updated:** 2026-03-07 18:17 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** VIEGA
**Manufacturer code:** 104771
**EAN:** 4015211104771
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.99 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 7.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--viega-104771--11178058

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

VIEGA adapter 15 mm to 3/4" (model 104771) is a plumbing fitting designed to connect 15 mm pipe systems to 3/4" threaded fixtures. As a precision-manufactured adapter from VIEGA, it provides a compact transition between metric tubing and imperial threaded connections, useful for repair, retrofit, and new installation tasks in residential and commercial plumbing.

## Long description

VIEGA adapter 15 mm to 3/4" (model 104771) is a compact plumbing fitting that provides a transition between 15 mm metric pipe systems and 3/4" threaded fixtures. Manufactured by VIEGA to toleranced dimensions, the adapter is intended for use where a secure connection is required between copper, stainless or plastic 15 mm tubing and imperial-threaded valves, faucets, or appliances. The product is suitable for repair, retrofit, and new-installation situations in residential and light-commercial plumbing installations.
Advantages
The adapter offers a space-efficient connection that eliminates the need for multiple intermediate fittings when joining 15 mm pipework to 3/4" threaded components. Precision machining and material selection ensure consistent thread engagement and reliable sealing when used with appropriate sealing methods. Its compact design reduces potential stress points and simplifies alignment during installation, making it suitable for confined spaces and visible plumbing runs.
Suitable for
 Connecting 15 mm copper, stainless steel or plastic pipe to 3/4" threaded taps and valves
 Repairing or replacing fittings during bathroom or kitchen refurbishment
 Adapting metric supply lines to appliances or fixtures with imperial threads
 Use in residential and light-commercial water supply systems
Key specifications
 Connection A: 15 mm pipe interface compatible with standard 15 mm tubing
 Connection B: 3/4" external or internal threaded interface for fittings and fixtures
 Material: metal alloy suitable for potable water use (as specified by manufacturer)
 Design: compact inline adapter for minimal space requirement
 Typical temperature and pressure range: compatible with standard domestic plumbing systems (refer to system specifications)
How to use
Prepare the 15 mm pipe by cutting square and deburring the end. Attach the adapter to the 15 mm tubing using the recommended joining method for the pipe material (for example, compression, press-fit, or soldering if applicable) and ensure the joint is secure and leak-free. Thread the 3/4" side into the mating fixture using appropriate thread sealant or PTFE tape as required for the application. After assembly, pressurise the system and check all joints for leaks, tightening as necessary to achieve a watertight connection.
Usage recommendations
Use appropriate sealing materials for threaded connections and follow local plumbing codes. Select the correct joining method for the 15 mm pipe material and avoid over-tightening threads to prevent damage. If unsure about compatibility with specific pipe or fixture materials, consult VIEGA technical documentation or a qualified plumber.

## FAQ

### How much does the VIEGA adapter 15 mm to 3/4" 104771 cost, and is it available for purchase?

The price is 8.99 € (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 17.07.2026 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 VIEGA 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 VIEGA 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/11178058/61944424_large.webp