# Straight Coupling Alkotest MZP16 16x16 PEX (sigma-li) – plumbing connector

**URL:** https://aio.lv/en/product--alkotest-mzp16--11822826
**Data updated:** 2026-03-09 11:11 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** Alkotest
**Manufacturer code:** MZP16
**EAN:** 5901171120052
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--alkotest-mzp16--11822826

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Alkotest MZP16 is a straight PEX coupling (sigma-li) with 16x16 mm dimensions designed for connecting PEX pipes in plumbing installations. The metal/plastic connector ensures a secure inline joint for hot and cold water distribution, repair works, and system extensions. Intended for use with compatible 16 mm PEX piping and standard installation tools.

## Long description

Alkotest MZP16 16x16 PEX straight coupling (sigma-li) is a metal/plastic inline connector for 16 mm PEX piping. It is designed to join two sections of PEX pipe in plumbing systems for hot and cold water distribution, repair jobs, or when extending existing runs. The coupling supports a compact, straight connection while maintaining hydraulic continuity and minimizes the need to replace pipe sections during maintenance.
Advantages
The metal/plastic construction combines corrosion resistance with dimensional stability to provide a durable joint. Its 16x16 size is compatible with standard 16 mm PEX pipes, allowing straightforward installation with common tools. The straight design preserves flow characteristics and reduces pressure loss at the connection. The connector is suitable for use in both concealed and exposed installations where a reliable inline coupling is required.
Suitable for
Joining two 16 mm PEX pipes in domestic water supply systems
Repairing damaged sections of PEX piping
Extending existing PEX runs in renovation or new-build projects
Use in hot and cold potable water installations where compatible fittings are specified
Key specifications
Type: straight coupling for PEX pipe
Connection size: 16 mm × 16 mm
Material: combined metal and plastic construction for strength and corrosion resistance
Application: potable hot and cold water plumbing systems
Compatibility: designed for standard 16 mm PEX piping and compatible installation tools
How to use
Prepare the PEX pipes by cutting squarely and deburring the ends. Slide any required compression sleeves or rings onto the pipe if the installation system requires them. Insert each pipe end fully into the coupling until it seats, following the assembly depth guidelines of your installation method. Use the appropriate crimping or clamping tool compatible with the system to secure the connection, and verify the joint with a pressure test before concealing or commissioning the installation.
Usage recommendations
Ensure compatibility between this coupling and the chosen 16 mm PEX system components before installation. Follow local plumbing codes and manufacturer instructions for crimp/clamp techniques, and perform a pressure test of the assembled line to confirm leak-tightness. Store fittings in a dry environment and avoid prolonged exposure to UV light when used in exposed installations.

## FAQ

### How much does the Straight PEX coupling Alkotest MZP16 16x16 cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 90 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 13.07.2026 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 Alkotest 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 Alkotest 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/11822826/67224854_large.webp