# VIEGA transition coupling 35 mm x 5/4" nipple 102661

**URL:** https://aio.lv/en/product--viega-102661--11832376
**Data updated:** 2026-03-09 14:43 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** VIEGA
**Manufacturer code:** 102661
**EAN:** 4015211102661
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--viega-102661--11832376

## 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

VIEGA transition coupling with a 35 mm tube connection and 5/4" (1¼") male nipple (MPN 102661). Designed to join piping of different connection types or sizes, it provides a secure mechanical transition for plumbing installations. Suitable for use in water supply and heating systems where a 35 mm pipe must be connected to a 5/4" threaded fitting.

## Long description

VIEGA transition coupling 35 mm x 5/4" nipple is a mechanical adapter designed to connect a 35 mm pipe to a 5/4" (1¼") threaded fitting. Manufactured by VIEGA, this coupling is intended for plumbing and heating systems where a change of connection type or size is required. The coupling provides a stable, sealed transition between a smooth-bore tube and a male threaded nipple, enabling reliable integration of different piping elements within domestic and commercial installations.
Advantages
The coupling offers a compact design that facilitates installation in confined spaces and reduces the need for multiple fitting components. It ensures a secure mechanical link between a 35 mm tube and a 5/4" threaded connection, maintaining system integrity under normal operating pressures typical of water supply and heating circuits. Made to VIEGA quality standards, the fitting supports consistent sealing and alignment for straightforward assembly and maintenance.
Suitable for
 Connecting 35 mm tubing to 5/4" threaded valves or radiators
 Domestic and commercial potable water distribution
 Hot water heating systems and radiators
 Retrofit jobs where pipe size or connection type must be adapted
Key specifications
 Tube connection diameter: 35 mm
 Threaded end type: male nipple 5/4" (1¼")
 Function: mechanical transition between tube and threaded fitting
 Typical application: water supply and heating systems
 Design: compact coupling for space-efficient installations
How to use
Prepare the 35 mm tube by cutting squarely and deburring the end to ensure proper seating. Thread the 5/4" male nipple into the corresponding female fitting, using appropriate sealing material or gasket where required by the system design. Insert the prepared tube end into the coupling and secure according to the manufacturer's integration method—ensure alignment and proper engagement to achieve a leak-free joint. Tighten threaded connections to recommended torque levels for the system and verify sealing under pressure before finalizing the installation.
Usage recommendations
Use the coupling with compatible materials and follow local plumbing codes. Inspect sealing surfaces and threads for damage before assembly. For installations involving hot water or pressurized systems, perform pressure testing after assembly and use appropriate thread sealants or gaskets recommended for potable water and heating applications.

## FAQ

### How much does the VIEGA transition coupling 35 mm x 5/4" 102661 cost, and is it available for purchase?

The price is 10.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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. 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/11832376/67232946_large.webp