# Straight Connector SiGMA-Li MZPW1634 16x3/4" Female Thread PEX

**URL:** https://aio.lv/en/product--sigma-li-mzpw1634--11825535
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** SiGMA-Li
**Manufacturer code:** MZPW1634
**EAN:** 5902814621950
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.99 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 7.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-li-mzpw1634--11825535

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Straight connector SiGMA-Li MZPW1634 designed for PEX piping with a 16 mm tube connection and 3/4" female (GW) threaded end. Serves to join a PEX pipe to a 3/4" threaded fitting or valve. Suitable for domestic and light commercial plumbing where a secure transition from PEX to threaded components is required.

## Long description

Straight connector SiGMA-Li MZPW1634 16x3/4" Female Thread PEX is a straight transition fitting designed to connect 16 mm PEX tubing to a 3/4" female threaded component. It provides a mechanical interface between flexible PEX pipe and standard threaded valves, adapters or fixtures, enabling a reliable connection in domestic and light commercial plumbing installations where a change from push-fit or PEX piping to threaded hardware is required.
Advantages
The fitting offers a compact straight design that minimizes space requirements and aligns piping runs for straightforward installation. Constructed to be compatible with 16 mm PEX systems and standard 3/4" female threads, it simplifies the transition without additional adapters. The connector is suitable for installations where a secure, pressure-resistant joint between PEX and threaded fittings is needed, reducing the risk of leaks when installed properly.
Suitable for
Connecting 16 mm PEX tubing to 3/4" threaded valves or fixtures
Domestic plumbing repairs and upgrades involving PEX systems
Light commercial piping where PEX meets threaded components
Transitions between flexible piping and rigid threaded fittings
Key specifications
Connection type: straight connector for PEX to 3/4" female thread
PEX tube size compatibility: 16 mm
Thread type: 3/4" female (internal) thread suitable for standard threaded fittings
Application: potable water and heating circuits in domestic and light commercial settings
Orientation: inline/straight coupling
How to use
Prepare the 16 mm PEX tubing by cutting it square and ensuring the tube end is clean and free of burrs. Insert the PEX end into the connector according to the manufacturer's PEX insertion depth recommendations and secure it using the specified crimp, clamp, or compression method compatible with the connector design. Thread the 3/4" female end onto the corresponding male threaded fitting or valve, applying appropriate thread sealant or tape where required by local plumbing practice. Tighten to a firm hand and wrench fit without over-torquing, and verify alignment for a straight, leak-free connection.
Usage recommendations
Use with compatible 16 mm PEX systems and matched installation tools and fittings. Follow local plumbing codes and the PEX system manufacturer's instructions for pressure and temperature limits. Perform a pressure test after installation to confirm joint integrity.

## FAQ

### How much does the SiGMA-Li MZPW1634 16x3/4" Straight PEX Connector 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 — 11 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 16.07.2026 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

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