# Compression straight coupling REHAU RAUPEX 20 x 1.9 mm SDR 11 for PE-Xa pipe connections

**URL:** https://aio.lv/en/product--rehau-11392821001--11825443
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** REHAU
**Manufacturer code:** 11392821001
**EAN:** 4007360038632
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.99 €
**Prices and availability valid until:** 2026-08-06 23:59
**Price without VAT (21%):** 7.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rehau-11392821001--11825443

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.07.2026 | free |
| Pickup points | 29.07.2026 | 1.89 EUR |
| Courier delivery to door | 29.07.2026 | 4.99 EUR |

## Summary description

REHAU RAUPEX straight coupling, intended for equal-diameter through connections of PE-Xa (RAUPEX) piping. Size 20 x 1.9 mm (SDR 11) matches 20 mm nominal pipe with 1.9 mm wall thickness. Designed to join two pipe ends in heating and plumbing installations, providing a reliable mechanical connection for hot and cold water distribution and underfloor heating circuits.

## Long description

REHAU RAUPEX compression straight coupling 20 x 1.9 mm SDR 11 is a mechanical fitting for creating a secure, equal-diameter connection between two PE-Xa (RAUPEX) pipes. It is designed for use in plumbing and heating systems where a reliable through connection is required. The coupling matches a 20 mm nominal RAUPEX pipe with a 1.9 mm wall thickness and provides a compact, low-profile join suitable for water distribution and underfloor heating circuits.
Advantages
The coupling offers a simple, mechanically robust connection without the need for soldering or fusion welding. Manufactured to fit PE-Xa (RAUPEX) piping, the design minimises flow restriction and ensures consistent inner diameter across the joint. Its construction supports temperature and pressure conditions typical for domestic heating and potable water systems and enables quick installation with standard compression tools and fittings.
Suitable for
Through-line connections of PE-Xa (RAUPEX) pipes with 20 x 1.9 mm (SDR 11) dimensions
Domestic hot and cold water distribution
Underfloor heating circuits and radiator connections
Renovation and extension of existing RAUPEX piping systems
Key specifications
Pipe system compatibility: PE-Xa (RAUPEX)
Nominal size: 20 mm
Pipe wall thickness: 1.9 mm (SDR 11)
Connection type: straight compression coupling for equal-diameter through joints
Typical applications: potable water and heating circuits
How to use
Prepare both pipe ends by cutting squarely and deburring to ensure full insertion. Slide the coupling components over the pipe ends as required, insert each pipe fully into the fitting until it seats against the internal stop, and tighten the compression elements to the manufacturer’s recommended torque or to the installer’s standard practice for compression fittings. After installation, inspect the joint and perform a pressure test according to system requirements to verify leak-tightness before commissioning.
Usage recommendations
Use with RAUPEX PE-Xa pipe of matching 20 x 1.9 mm SDR 11 dimensions. Follow local plumbing codes and REHAU installation guidelines for temperature and pressure limits. When replacing or extending existing piping, confirm compatibility of tool sizes and ensure the pipe is free from damage at the connection point before assembly.

## FAQ

### How much does the REHAU RAUPEX 20 x 1.9 mm SDR 11 straight coupling 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 — 1 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 24.07.2026 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 REHAU 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 REHAU 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/11825443/67227150_large.webp