# SiGMA-Li MTW1612 plumbing tee 16×1/2" female thread for PEX pipe

**URL:** https://aio.lv/en/product--sigma-li-mtw1612--11825355
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** SiGMA-Li
**Manufacturer code:** MTW1612
**EAN:** 5902814621837
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 9.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-li-mtw1612--11825355

## 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

Plumbing tee SiGMA-Li MTW1612 designed for PEX piping systems. Provides a 16 mm connection with 1/2" female threaded branch for integrating threaded fittings into PEX runs. Used to split or branch water supply lines, connect valves or gauges, and adapt between PEX and threaded metal/plastic components in domestic and light commercial installations.

## Long description

The SiGMA-Li MTW1612 plumbing tee 16×1/2" female thread for PEX pipe is a tee fitting designed for use in PEX piping systems. It provides a 16 mm continuous PEX run with a 1/2" female threaded branch, enabling the integration of threaded valves, gauges or other fittings into flexible PEX runs. The fitting is intended for water supply distribution in domestic and light commercial installations where a threaded connection is required on a PEX line.
Advantages
This tee allows a secure transition between PEX tubing and standard 1/2" threaded components without the need for additional adapters. Its compact design supports straightforward installation in confined spaces. The product simplifies branching of supply lines, reduces the number of separate fittings needed for mixed PEX and threaded systems, and helps maintain reliable water flow when joined according to installation standards.
Suitable for
Branching potable water supply lines in residential plumbing
Connecting valves, pressure gauges or hose adapters to PEX runs
Retrofit work where PEX must be joined to threaded metal or plastic components
Light commercial installations with PEX distribution systems
Key specifications
PEX connection size: 16 mm
Threaded branch: 1/2" female thread
Function: tee fitting for branching and integrating threaded components
Application: water supply distribution in domestic and light commercial systems
Compatibility: for use with compatible 16 mm PEX tubing and standard 1/2" threaded fittings
How to use
Prepare the PEX tubing ends according to the PEX system manufacturer’s instructions and ensure they are cut square and clean. Install the tee using the recommended joining method for the specific PEX system (e.g., crimp, clamp, expansion or push-fit), then connect the 1/2" female threaded branch to the required threaded fitting using appropriate thread sealant or tape as specified for potable water systems. After installation, pressurize and inspect the branch and PEX connections for leaks and proper seating.
Usage recommendations
Use only with compatible 16 mm PEX tubing and standard 1/2" threaded fittings. Follow local plumbing codes and the PEX system manufacturer’s installation guidelines. When connecting threaded components, use suitable thread sealant compatible with drinking water systems and avoid over-tightening to prevent damage to threads or the fitting body.

## FAQ

### How much does the SiGMA-Li MTW1612 plumbing tee 16×1/2" cost, and is it available for purchase?

The price is 11.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 15 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/11825355/67227098_large.webp