# Brass reduction coupling TECE 20×16 mm, female/male plumbing fitting

**URL:** https://aio.lv/en/product--tece-766503-706503--11825670
**Data updated:** 2026-03-09 11:15 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** TECE
**Manufacturer code:** 766503 / 706503
**EAN:** 4027255052307
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 7.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tece-766503-706503--11825670

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

TECE brass reduction coupling 20×16 mm is a plumbing fitting designed to join pipes or tubes of different diameters. Made of brass for corrosion resistance, it provides a secure transition from 20 mm to 16 mm lines. Suitable for water supply and heating systems, repair work, and installation tasks where a reliable diameter reduction is required.

## Long description

TECE brass reduction coupling 20×16 mm is a female-to-male plumbing fitting designed to connect pipes or tubes with different diameters. Manufactured from brass for enhanced corrosion resistance and mechanical stability, this coupling provides a compact and reliable transition from a 20 mm line to a 16 mm line. It is suitable for potable water supply and heating systems and intended for use in repair, renovation, and new installation projects that require a change of pipe diameter while maintaining leak-tight performance.
Advantages
The brass construction ensures durability and resistance to corrosion, while the female/male connection design simplifies installation and offers a secure threaded joint. The compact size minimizes space requirements in confined plumbing runs. Brass material also provides good thermal and mechanical performance under typical water supply and heating conditions.
Suitable for
 Domestic and commercial potable water supply lines
 Central heating and radiator connections
 Repair and renovation of existing plumbing where diameter reduction is needed
 Installation work in tight spaces requiring compact fittings
Key specifications
 Material: brass for corrosion resistance
 Connection type: female to male threaded coupling
 Dimensions: transition from 20 mm to 16 mm
 Application: water supply and heating systems
 Form factor: compact inline reduction fitting
How to use
Prepare pipe ends by cutting square and deburring to ensure proper seating. Thread tape or appropriate sealing compound may be applied to the male thread as required by local practice. Hand-tighten the coupling onto the male thread and finish with suitable tools to the torque recommended for brass fittings, avoiding excessive force that can damage threads. Ensure alignment of the 20 mm and 16 mm pipes, then pressure-test the system according to applicable standards before commissioning.
Usage recommendations
Use the coupling only within the specified temperature and pressure limits of the system, and verify compatibility of connected pipe materials. For potable water installations, follow local regulations for sealing methods and installation practices. If uncertain about torque or sealing materials, consult installation guidelines or a qualified plumbing professional.

## FAQ

### How much does the TECE brass reduction coupling 20×16 mm 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 — 117 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 09.07.2026 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 TECE 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 TECE 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/11825670/67227332_large.webp