# Compression reducing coupling VIEGA 20 x 16 mm, brass, polished

**URL:** https://aio.lv/en/product--viega-729776--11832187
**Data updated:** 2026-03-09 14:43 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** VIEGA
**Manufacturer code:** 729776
**EAN:** 4015211729776
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 8.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--viega-729776--11832187

## 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

Compression reducing coupling by VIEGA for connecting pipes with diameters 20 mm and 16 mm. Constructed from brass with a polished finish, it provides a durable mechanical junction for plumbing systems, enabling transition between sizes in potable water and heating installations. Suitable for use in repair, renovation and new-build pipework where a reliable, compact reducer is required.

## Long description

Compression reducing coupling VIEGA 20 x 16 mm, brass, polished is a compact mechanical connector designed to join 20 mm and 16 mm pipes in potable water and heating systems. Made of brass with a polished surface, the fitting creates a reliable transition between two pipe diameters without soldering or welding, suitable for repair, renovation and new-build installations where space efficiency and durability are required.
Advantages
The brass construction offers good corrosion resistance and mechanical strength while the polished finish provides a smooth surface that is easy to clean. The compression design allows for a secure, leak-resistant connection without the need for heat or complex tools, reducing installation time. Its compact form factor simplifies use in tight spaces and enables a straightforward transition between 20 mm and 16 mm pipelines.
Suitable for
Connecting 20 mm to 16 mm copper, brass or compatible plastic pipes in potable water systems
Reducing pipe diameter in residential heating circuits
Repairing or upgrading existing pipework during renovation
Compact installations where a space-saving reducer is required
Key specifications
Material: brass
Connection type: compression reducing coupling
Pipe diameters: 20 mm to 16 mm
Surface finish: polished
Application: potable water and heating systems
Installation: push-on with compression ferrule and nut (mechanical joint, no soldering)
How to use
Ensure both pipes are cut square and free of burrs, dirt and oil. Slide the compression nut and ferrule onto each pipe end, insert the smaller-diameter pipe into the reducer until it seats, then tighten the compression nuts evenly to form a seal. Follow standard plumbing practice by hand-tightening and then applying the recommended additional turns with an appropriate wrench to achieve the required compression without over-tightening. Pressure-test the connection after installation according to local regulations.
Usage recommendations
Use compatible pipe materials and sizes, verify that the fitting is suitable for potable water if required, and follow applicable local codes. Do not force mismatched pipe types together; where necessary, use approved adaptors or consult technical documentation for material compatibility. Regular inspection after installation is advised to confirm the joint remains leak-free.

## FAQ

### How much does the Compression reducing coupling VIEGA 20 x 16 mm cost, and is it available for purchase?

The price is 9.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 27 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/11832187/67232725_large.webp