# Compression Tee SiGMA-Li MT20 — 20×20×20 mm copper pipe fitting

**URL:** https://aio.lv/en/product--sigma-li-mt20--11825686
**Data updated:** 2026-03-09 11:15 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** SiGMA-Li
**Manufacturer code:** MT20
**EAN:** 5901171120212
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 11.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-li-mt20--11825686

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Compression tee SiGMA-Li MT20 is a 20×20×20 mm pipe fitting designed for creating a three-way branch in copper piping systems. The fitting uses a press connection for secure, solder-free joints suitable for potable water, heating and cooling installations. It provides a reliable mechanical seal, simplifies installation with press tools, and is intended for professional plumbing and HVAC applications.

## Long description

Compression tee SiGMA-Li MT20 — 20×20×20 mm copper pipe fitting is a three-way connector for copper piping systems that enables a branch connection with press-type joints. Designed for potable water, heating and cooling applications, the fitting creates solder-free, mechanically sealed connections using press tools. Its 20×20×20 mm dimensions match common copper pipe sizes, allowing integration into residential and commercial plumbing and HVAC networks.
Advantages
The compression tee provides a reliable mechanical seal without the need for soldering, reducing installation time and eliminating the risks associated with open flames. Press connections deliver consistent, leak-resistant joints when formed with the correct pressing tool and jaws. Constructed for compatibility with copper piping, the fitting supports potable water and heating systems while maintaining corrosion resistance and structural integrity under typical operating conditions.
Suitable for
Creating a three-way branch in copper potable water systems
Branching into heating circuits and radiator connections
Integrating into cooling and chilled water distribution
Professional plumbing and HVAC installation projects
Key specifications
Material: copper-compatible press fitting
Connection type: press (mechanical, solder-free)
Nominal dimensions: 20×20×20 mm
Application: potable water, heating, cooling systems
Seal type: mechanical press joint designed for use with compatible press fittings and tools
How to use
Prepare copper pipes by cutting squarely and deburring the ends to ensure full insertion. Mark insertion depth on each pipe according to the fitting design, insert pipes into the tee until reaching the stop, and verify alignment. Use a compatible press tool with the appropriate jaw size to form the mechanical joint; perform the press operation according to the press tool manufacturer’s instructions. After pressing, inspect each joint visually and perform pressure testing as required by local codes to confirm leak-free performance.
Usage recommendations
Use only press tools and jaws specified for the 20 mm press fittings and follow manufacturer guidelines for tool maintenance and calibration. Avoid soldering or using open flames on press connections. Perform pressure and leak tests after installation and follow applicable local regulations for potable water and heating systems.

## FAQ

### How much does the Compression Tee SiGMA-Li MT20 20×20×20 mm cost, and is it available for purchase?

The price is 14.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 503 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 07.07.2026 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 SiGMA-Li 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 SiGMA-Li 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/11825686/67227348_large.webp