# Tee fitting SiGMA-Li MTW2012 for PEX pipes 20 x 1/2" female threaded connection

**URL:** https://aio.lv/en/product--sigma-li-mtw2012--11825361
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** SiGMA-Li
**Manufacturer code:** MTW2012
**EAN:** 5902814621851
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-li-mtw2012--11825361

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.89 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

SiGMA-Li MTW2012 is a T-shaped plumbing fitting designed for PEX piping systems, specified for 20 mm pipe size with 1/2" female (internal) threaded connection. Intended to join or branch PEX lines, it provides a threaded outlet for connecting valves, adapters or other threaded components. Suitable for domestic and light commercial water supply installations.

## Long description

SiGMA-Li MTW2012 tee fitting for PEX pipes is a T-shaped plumbing connector designed for use with 20 mm PEX tubing and a 1/2" female threaded outlet. The fitting enables a secure branch from a continuous PEX line to a threaded component such as a valve, adapter or fixture connection. It is intended for potable water distribution in domestic and light commercial installations and is compatible with common PEX joining techniques when installed with appropriate tools and seals.
Advantages
The SiGMA-Li MTW2012 combines a compact footprint with a standard 1/2" female threaded outlet, allowing direct connection of threaded valves and accessories without additional transition pieces. The T-configuration provides a reliable branch point while maintaining smooth internal flow. Constructed for use with PEX systems, the fitting supports a straightforward installation process and is suitable for typical hot and cold water supply conditions within its rated limits.
Suitable for
 Branching domestic PEX water supply lines
 Connecting thermostatic or shut-off valves with 1/2" male threads
 Integrating fixtures or adapters into existing PEX runs
 Light commercial plumbing and renovation projects
Key specifications
 Material compatibility: PEX piping systems
 Pipe size: 20 mm
 Threaded connection: 1/2" female (internal)
 Configuration: T-shaped (tee) branch fitting
 Typical application: potable water distribution (hot and cold)
How to use
Prepare the PEX pipe ends according to the chosen joining method and manufacturer instructions. Insert the PEX tubing into the fitting’s plain ends and secure with the appropriate crimp, clamp or push-fit system compatible with PEX and the fitting body. Use a compatible 1/2" male threaded component to engage the female thread; apply the correct type and amount of thread sealant or tape suitable for potable water systems to ensure a watertight connection. Verify alignment and support the branch line to prevent stress on the fitting.
Usage recommendations
Follow local plumbing codes and the PEX system manufacturer’s installation guidelines. Verify temperature and pressure limits of the PEX system and the fitting when selecting this part for hot water or high-pressure applications. Regularly inspect threaded connections after initial system pressurization to confirm leak-free installation.

## FAQ

### How much does the SiGMA-Li MTW2012 PEX tee 20 x 1/2" cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 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 22.07.2026 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/11825361/67227099_large.webp