# Coupling internal extender D50 MAGNAPLAST — internal pipe coupling for 50 mm ducts

**URL:** https://aio.lv/en/product--magnaplast-12310--4922500
**Data updated:** 2026-03-07 15:07 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** MAGNAPLAST
**Manufacturer code:** 12310
**EAN:** 4020826123109
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 4.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 3.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--magnaplast-12310--4922500

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.89 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

Internal coupling extender D50 by MAGNAPLAST is a concentric internal pipe coupling designed for 50 mm diameter ducts. Provides a straight, in-line connection between two pipe sections without changing external dimensions. Suitable for ventilation, drainage or conduit systems that require secure internal joins and minimal external protrusion. Easy to install in tight spaces and behind fixtures.

## Long description

MAGNAPLAST Coupling internal extender D50 is an internal pipe coupling engineered for 50 mm diameter ducts. It provides a concentric, in-line connection between two sections of pipe without altering the external profile, allowing uninterrupted external dimensions while reinforcing the joint. The coupling is suitable for installations where a low-profile internal join is required and where installation space is limited, such as behind fixtures or within service voids.
Advantages
The internal extender ensures a secure, concentric fit that maintains internal flow and minimizes turbulence. Its design avoids external protrusion, which preserves surrounding clearances and aesthetic lines. Installation is straightforward in confined spaces and does not require special external collars or visible seals. The coupling is compatible with standard 50 mm ducts used in ventilation, drainage, and conduit applications, offering a robust internal join that reduces the risk of misalignment.
Suitable for
Joining two 50 mm duct sections in ventilation systems
Internal connections in drainage or condensate lines
Concealed conduit joins behind fixtures or inside service cavities
Repairing short damaged sections without altering external duct runs
Key specifications
Designed for nominal 50 mm internal duct diameter
Concentric internal coupling design for in-line connections
Maintains external duct profile without additional external splice
Smooth internal bore to support uninterrupted airflow or fluid passage
Compact form factor for installation in tight spaces
How to use
Prepare the duct ends by ensuring they are clean, free of burrs and cut squarely. Insert the coupling into one pipe end until it seats firmly, then align and push the second pipe onto the opposite end of the coupling until the joint is fully engaged. Verify concentric alignment and that there are no gaps or offsets. If required by the installation environment, secure the joint with appropriate clamps or adhesive recommended for the duct material; the coupling itself provides a reinforced internal connection without changing the external duct dimension.
Usage recommendations
Use the coupling in applications matching the 50 mm nominal diameter and ensure compatibility with the duct material. Avoid using the internal extender where external access for future removal is impossible unless a permanent joint is acceptable. For sealed ventilation systems or pressurised conduits, supplement the internal coupling with suitable external sealing methods if system requirements demand airtight or watertight joints.

## Specifications

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.068 kg |

## FAQ

### How much does the Coupling internal extender D50 MAGNAPLAST cost, and is it available for purchase?

The price is 4.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 260 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 01.07.2026 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 MAGNAPLAST 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 MAGNAPLAST 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4922500/30636764_large.webp