# Water meter coupling Onnline RAC3/4 DN20 3/4" for DN20 piping

**URL:** https://aio.lv/en/product--onnline-rac34--11006558
**Data updated:** 2026-02-13 15:46 (EET)
**Category:** Sinks & Sink Accessories
**Manufacturer:** Onnline
**Manufacturer code:** RAC3/4
**EAN:** 5907702862514
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 8.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--onnline-rac34--11006558

## 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

Onnline RAC3/4 DN20 water meter coupling is designed to connect a 3/4" water meter to DN20 piping. The coupling provides a secure threaded connection for installation or replacement of water meters. Suitable for residential and light commercial plumbing, it ensures correct alignment and reliable mechanical join between meter and pipework, facilitating easy installation and maintenance.

## Long description

Onnline RAC3/4 DN20 water meter coupling is designed to connect a 3/4" (R 3/4) water meter to DN20 (20 mm) piping. The coupling provides a threaded mechanical join that aligns the meter with the pipework and creates a stable connection for installation or replacement. Intended for residential and light commercial plumbing, this coupling supports straightforward meter mounting and future maintenance operations.
Advantages
The coupling offers a compact, reliable threaded interface that simplifies the transition between a 3/4" meter and DN20 piping. Its design reduces the need for additional adapters and provides a consistent alignment for accurate metering. The product is suitable for repeated installation and removal cycles during meter replacement or servicing and helps maintain a leak-minimised connection when properly fitted.
Suitable for
 Connecting a 3/4" water meter to DN20 (20 mm) pipe runs
 Residential water meter installations and replacements
 Light commercial plumbing where DN20 piping is used
 Situations requiring a threaded, removable connection for meter maintenance
Key specifications
 Connection type: threaded coupling for 3/4" meter to DN20 piping
 Compatible pipe diameter: nominal 20 mm (DN20)
 Meter thread size: 3/4" (R 3/4)
 Application: cold and domestic water supply systems
 Intended use: mechanical join for meter installation and removal
How to use
Ensure the pipe ends and meter threads are clean and free from debris before fitting. Wrap appropriate thread sealant or tape on male threads if required by local installation practice. Screw the coupling onto the meter thread by hand to start, then tighten with suitable tools to achieve a secure, leak-resistant joint without over-tightening. Align the meter and check for correct orientation. After installation, pressurise the system and inspect the connection for leaks; re-tighten if necessary following recommended torque limits for the meter and piping materials.
Usage recommendations
Use compatible thread sealing materials rated for potable water, follow local plumbing codes, and avoid excessive torque to prevent thread or meter damage. Regularly inspect the connection during scheduled maintenance and replace the coupling if threads show wear or leakage persists.

## FAQ

### How much does the Onnline RAC3/4 DN20 water meter coupling cost, and is it available for purchase?

The price is 9.99 € (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 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 Onnline 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 Onnline 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/11006558/61659109_large.webp