# Quick-lock coupling Einhell 4139210

**URL:** https://aio.lv/en/product--einhell-4139210--3096199
**Data updated:** 2026-02-25 16:30 (EET)
**Category:** Power Tools Accessories
**Manufacturer:** EINHELL
**Manufacturer code:** 4139210
**EAN:** 4006825599046
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 23.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 19.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--einhell-4139210--3096199

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

The Einhell 4139210 quick-lock coupling is designed for easy and secure connection of air tools. It features a 1/2" connecting thread, ensuring compatibility with Einhell products. This accessory is sold as a single piece, making it a convenient addition to your toolkit for efficient air compressor use.

## Long description

The Einhell 4139210 quick-lock coupling provides a simple and reliable connection between air compressors and pneumatic tools. Designed with a 1/2" connecting thread, this single-piece coupling is compatible with a range of Einhell air tools and accessories, enabling fast attachment and detachment for workshop and jobsite tasks. Its compact construction helps maintain airflow while offering a secure mechanical fit for standard compressed air hoses.
Advantages
The coupling offers quick, tool-free connection and disconnection, reducing downtime when changing pneumatic accessories. Its standardized 1/2" thread supports compatibility with many Einhell fittings, and the durable metal construction resists wear from repeated use. Sold as an individual unit, it is convenient to replace or keep as a spare part in a maintenance kit.
Suitable for
Connecting Einhell air tools to compressors and hoses
Workshop maintenance and equipment repair where quick hose changes are required
Professional and DIY pneumatic applications that use standard 1/2" threaded fittings
Key specifications
Connection type: quick-lock coupling for compressed air systems
Thread size: 1/2" connecting thread
Material: metal construction for repeated use
Supply format: single piece
How to use
Ensure the compressor and pneumatic tool are turned off and depressurized before connecting. Thread the coupling onto the hose or tool port using the 1/2" connection, then push the mating plug or nipple into the coupling until it locks. After use, depressurize the line and release the quick-lock mechanism to disconnect. Regular inspection for wear or damage will help maintain a secure seal and consistent airflow.
Usage recommendations
Use the coupling with hoses and fittings rated for your compressor's maximum pressure and follow all safety procedures for compressed air systems. Replace the coupling if signs of corrosion, deformation, or persistent leakage appear.

## Specifications

| Feature | Value |
|---|---|
| Brand compatibility | Einhell |
| Connecting thread | 1/2 |
| Product type | Quick-lock coupling |
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Quick-lock coupling Einhell 4139210 cost, and is it available for purchase?

The price is 23.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 27.07.2026 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. 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 EINHELL 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 EINHELL 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/3096199/64202964_large.webp