# Alkotest MKW1612 plumbing elbow 16 x 1/2 PEX Sigma-Li for pipe connection

**URL:** https://aio.lv/en/product--alkotest-mkw1612--11822724
**Data updated:** 2026-03-09 11:11 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Alkotest
**Manufacturer code:** MKW1612
**EAN:** 5901171120069
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 7.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--alkotest-mkw1612--11822724

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Alkotest MKW1612 is a plumbing elbow designed for PEX piping systems with a 16 x 1/2 connection size and Sigma-Li specification. It provides a 90° directional change between pipes or fittings and is intended for use in residential and light commercial water supply and heating installations. Use it to join PEX pipes to threaded or compatible fittings where a compact elbow is required.

## Long description

Alkotest MKW1612 plumbing elbow is a 90° connector designed for PEX piping systems with a 16 x 1/2 connection size and Sigma-Li compatibility. It enables a compact directional change between PEX pipes and threaded or compatible fittings, suitable for water supply and heating installations in residential and light commercial environments. The elbow is intended to provide a neat transition where space is limited and a reliable sealed connection is required.
Advantages
The elbow offers a compact 90° change of direction that simplifies routing in tight spaces and reduces the need for additional fittings. Its design for PEX systems ensures compatibility with flexible piping and common threaded fittings, enabling straightforward connections. The component is durable under typical domestic water supply and heating conditions and facilitates a secure, sealed joint when installed according to manufacturer guidance.
Suitable for
Residential cold and hot water distribution with PEX piping
Underfloor heating manifolds and branch connections in light commercial settings
Connecting PEX lines to threaded valves, fixtures or adapters
Compact installations where a 90° turn is required
Key specifications
Connection size: 16 x 1/2 designed for PEX tubing to threaded/compatible fittings
Angle: 90° elbow for directional change
Compatibility: intended for use with Sigma-Li specified PEX systems
Application: potable water supply and heating installations in residential and light commercial use
How to use
Prepare PEX tubing by cutting squarely and deburring the pipe end. Insert the pipe into the elbow according to the Sigma-Li system instructions and secure the connection using the recommended method for the specific PEX system (such as crimp, clamp or push-fit where applicable). When connecting to threaded fittings, ensure the mating thread is clean and use appropriate sealing material on the thread if required. Verify alignment to maintain the intended 90° orientation and perform a pressure test after installation to check for leaks.
Usage recommendations
Follow local plumbing codes and the Sigma-Li system installation guidelines. Use compatible PEX fittings and approved tools for secure joints, and perform a pressure test before concealing the installation.

## FAQ

### How much does the Alkotest MKW1612 PEX elbow 16 x 1/2 cost, and is it available for purchase?

The price is 8.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 68 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 15.07.2026 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/11822724/67224775_large.webp