# Concealed Installation Set SiGMA-Li SIGMA LI 16×1/2×150 PE-RT (tuluje)

**URL:** https://aio.lv/en/product--sigma-li-pertkpd1612t--11825323
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** SiGMA-Li
**Manufacturer code:** PERTKPD1612T
**EAN:** 5902837600246
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.99 €
**Prices and availability valid until:** 2026-07-13 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-pertkpd1612t--11825323

## 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

Concealed installation set SiGMA-Li SIGMA LI 16×1/2×150 PE-RT (tuluje) is a plumbing component kit for under-wall installation. It includes PE-RT piping dimension 16×1 with 1/2-inch connection and 150 mm length segment, designed for hygienic potable-water distribution and heating systems. Suitable for new builds and renovation where compact, durable under-plaster connections are required.

## Long description

Concealed Installation Set SiGMA-Li SIGMA LI 16×1/2×150 PE-RT (tuluje) is a compact kit for under-wall plumbing connections, intended for potable-water distribution and heating systems. The set features PE-RT pipe with a 16×1 mm wall/dimension and a 1/2-inch connection interface, presented as a 150 mm length segment that integrates into concealed installation boxes or wall cavities. It is designed to provide hygienic water delivery and reliable connection points for fixtures while remaining hidden behind plaster or service panels.
Advantages
The concealed installation set offers corrosion-resistant polymer piping and a standardized 1/2-inch connection that simplifies integration with common fittings. Its short 150 mm segment is suitable for precise in-wall placement and reduces the need for exposed junctions. Materials selected for PE-RT construction ensure flexibility during installation and long-term dimensional stability for potable water and heating applications.
Suitable for
Under-plaster in-wall plumbing connections for sinks, showers and bidets
Concealed supply lines in residential and commercial heating systems
New construction and bathroom or kitchen renovations
Key specifications
Pipe material: PE-RT (polyethylene of raised temperature resistance)
Nominal pipe dimension: 16 mm outer diameter with 1 mm wall thickness
Connection size: 1/2-inch interface compatible with standard fittings
Segment length: 150 mm suited for concealed installation depth
Application: potable water distribution and heating circuits
How to use
Install the concealed installation set by positioning the 150 mm PE-RT segment within the installation box or wall cavity so the 1/2-inch connection face aligns with the fixture outlet. Secure the pipe and any retaining elements according to local building rules and the installation box manufacturer instructions. Make joints using compatible fittings and approved jointing techniques for PE-RT, then pressure-test the system before closing the wall to verify leak-free connections.
Usage recommendations
For best results, follow local plumbing codes and use fittings rated for PE-RT systems. Protect the concealed segment from sharp edges during installation and perform a pressure test at recommended service pressure. Use this kit in environments where the concealed installation depth matches the 150 mm length and where thermal and mechanical loads are within PE-RT material limits.

## FAQ

### How much does the Concealed Installation Set SiGMA-Li SIGMA 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 — 24 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/11825323/67227074_large.webp