# TDM Brass Coupling 3/4" x 1/2" Internal Thread

**URL:** https://aio.lv/en/product--tdmbrass-112s3412--12504983
**Data updated:** 2026-06-10 09:36 (EEST)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** tdm\_brass
**Manufacturer code:** 112S3412
**EAN:** 4770364159978
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 2.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tdmbrass-112s3412--12504983

## 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 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

The TDM Brass coupling is a high-quality plumbing fitting designed for connecting two pipes with different diameters. Featuring 3/4" and 1/2" internal threads, this durable brass component ensures a secure and leak-proof connection in water supply and heating systems. Its robust construction provides excellent resistance to corrosion and pressure, making it a reliable choice for professional plumbing installations and maintenance tasks.

## Long description

The TDM Brass coupling 3/4" x 1/2" is a professional-grade plumbing fitting engineered for reliable pipe transitions. This component features internal threads on both ends, allowing for a secure connection between pipes of different diameters. Crafted from high-quality brass, it offers exceptional durability and long-term performance in various fluid transport systems.
Advantages
The primary benefit of this brass coupling is its robust construction, which provides superior resistance to corrosion and mechanical stress. The precision-machined threads ensure a tight, leak-proof seal, reducing the risk of water damage and maintenance requirements. Its compact design allows for easy installation in confined spaces, while the high-quality material composition ensures compatibility with both hot and cold water systems, maintaining structural integrity under varying pressure conditions.
Suitable for
Connecting pipes with 3/4 inch and 1/2 inch diameters
Residential water supply systems
Heating and cooling circuit installations
Professional plumbing maintenance and repair
When it may not be suitable
This coupling is not intended for use with pipes made of materials that are prone to galvanic corrosion when in direct contact with brass, unless appropriate dielectric unions are used. It is also not suitable for high-pressure industrial steam systems or applications involving highly aggressive chemical substances that could degrade the brass material.
Key specifications
Material: Brass
Connection type: Internal thread
Size 1: 3/4 inch
Size 2: 1/2 inch
How to use
To install the coupling, ensure that the pipe ends are clean and free of debris. Apply a suitable thread sealant, such as PTFE tape or pipe paste, to the external threads of the pipes being connected. Screw the pipes into the coupling by hand until firm, then use an appropriate wrench to tighten the connection further. Avoid overtightening, as this may damage the threads or the fitting itself. Once installed, pressurize the system slowly to check for any signs of leakage.
What to consider before purchase
Verify the thread type and size of your existing pipes
Ensure compatibility with the fluid type and system temperature
Check for sufficient clearance space for wrench operation
Usage recommendations
Regularly inspect the connection for signs of moisture or corrosion, especially in systems subject to frequent temperature fluctuations. Ensure that the piping is properly supported to prevent excessive mechanical strain on the coupling.

## FAQ

### How much does the TDM Brass Coupling 3/4" x 1/2" Internal Thread cost, and is it available for purchase?

The price is 3.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3422 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 tdm\_brass 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 tdm\_brass 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/12504983/68845738_large.webp