# Compression coupler VIEGA 4715 Mufa 20 Pexfit — for 20 mm PEX pipes

**URL:** https://aio.lv/en/product--viega-608682--11825282
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** VIEGA
**Manufacturer code:** 608682
**EAN:** 4015211608682
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.99 €
**Prices and availability valid until:** 2026-08-05 23:59
**Price without VAT (21%):** 7.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--viega-608682--11825282

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.89 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

VIEGA 4715 Mufa 20 Pexfit is a compression coupler designed for connecting 20 mm PEX pipes. Manufactured by VIEGA, this fitting provides a reliable mechanical joint for potable water and heating installations where PEX piping is used. It suits straight pipe connections, enabling quick assembly with appropriate tools and ensuring a sealed, pressure-rated connection in residential and light commercial systems.

## Long description

VIEGA 4715 Mufa 20 Pexfit — for 20 mm PEX pipes is a compression coupler intended for joining 20 mm cross-linked polyethylene (PEX) pipes in potable water and heating systems. The fitting creates a mechanical sealed joint designed for straight connections, allowing installers to form a pressure-resistant link between two PEX pipe ends. It is suitable for use in residential and light commercial applications where PEX piping is specified.
Advantages
The compression design provides a secure mechanical connection without the need for soldering or adhesive, reducing on-site preparation and enabling faster assembly. Manufactured by VIEGA, the coupler is produced to industry tolerances that support consistent sealing and alignment of PEX pipes. Its compact form factor saves installation space in confined cavities and behind fixtures, while compatibility with 20 mm PEX minimizes the need for additional adaptors.
Suitable for
Connecting two 20 mm PEX pipes in straight runs
Potable water supply lines in residential buildings
Domestic heating circuits and radiator connections
Repair or replacement of existing 20 mm PEX segments
Key specifications
Type: compression coupler for PEX piping
Pipe diameter compatibility: 20 mm
Connection style: mechanical compression joint for straight coupling
Application: potable water and heating systems
Material characteristics: corrosion-resistant materials suitable for PEX systems
How to use
Prepare both PEX pipe ends by cutting them squarely and removing any burrs or deformation. Slide the compression components onto the pipe as required by the coupler design, insert the pipe ends fully into the coupling body, and tighten the compression nut(s) or ring to the manufacturer-recommended torque using appropriate tools. Verify alignment and confirm the joint is fully seated. After assembly, perform a pressure test of the system according to local regulations and standards to ensure the connection is leak-free.
Usage recommendations
Use with 20 mm PEX pipes only and follow local plumbing codes. Select the correct installation tools and torque settings indicated by VIEGA. Avoid excessive bending at the joint and support piping runs to prevent mechanical stress. Inspect joints after pressure testing and before concealing them within walls or floors.

## FAQ

### How much does the VIEGA 4715 Mufa 20 Pexfit compression coupler 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 — 58 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 22.07.2026 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 VIEGA 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 VIEGA 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/11825282/67227038_large.webp