# Straight Coupling Herz P702022 20x2 to Rp3/4 with Female Thread

**URL:** https://aio.lv/en/product--herz-p702022--11825574
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Herz
**Manufacturer code:** P702022
**EAN:** 9004174144905
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--herz-p702022--11825574

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Herz P702022 is a straight coupling designed for connecting 20x2 (copper/pipe dimension) to Rp3/4 pipe fittings using a female thread. The coupling provides a mechanical connection between a 20x2 pipe and a Rp3/4 threaded component, suitable for plumbing and heating installations where transition between dimensioned pipe and BSP/Rp threaded fittings is required.

## Long description

Herz P702022 straight coupling connects a 20x2 pipe to a Rp3/4 threaded fitting using a female thread. Designed for plumbing and heating systems, the coupling creates a reliable mechanical transition between dimensioned copper or similar 20x2 tubing and a BSP/Rp3/4 threaded component. Its straight, compact form allows use in confined spaces and in-line installations where a direct axial connection is required.
Advantages
The coupling offers a simple mechanical connection without the need for soldering or complex adapters, reducing installation time. Its female Rp3/4 thread provides compatibility with widely used BSP/Rp fittings, while the 20x2 end fits standard 20 mm tubing. The straight design ensures a minimal flow disruption and a compact footprint in pipe runs. Materials and thread precision ensure secure sealing when installed with appropriate sealing tape or washers.
Suitable for
Residential and commercial plumbing supply lines
Heating system connections and radiators
Transitions between metric 20x2 pipes and BSP/Rp3/4 threaded components
Repair or retrofit work where replacing whole sections is impractical
Key specifications
Connection A: 20x2 pipe (suitable for 20 mm copper or comparable tubing)
Connection B: female Rp3/4 threaded fitting (BSP/Rp standard)
Type: straight coupling for axial pipe-to-thread transition
Application: plumbing and heating systems
Installation position: inline, suitable for confined spaces
How to use
Prepare the 20x2 pipe by deburring and ensuring a clean, square cut. Insert the pipe into the coupling end designed for 20x2 and secure according to the coupling's assembly method (mechanical compression, press-fit or compatible fixation based on product family). Apply suitable thread sealant (PTFE tape or approved liquid sealant) to the male Rp3/4 thread of the mating component, then engage threads by hand and tighten with an appropriate wrench until a secure, leak-free connection is achieved per applicable torque guidance. After assembly, pressure-test the system according to local standards.
Usage recommendations
Use correct sealing materials for BSP/Rp threads and follow local plumbing and heating codes. Avoid over-tightening to prevent thread damage and ensure the 20x2 pipe is fully inserted and supported to reduce stress on the coupling. For press-fit or compression variants, follow the manufacturer's instructions and tooling requirements to achieve reliable joints.

## FAQ

### How much does the Herz P702022 Straight Coupling 20x2 to Rp3/4 cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 15.07.2026 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 Herz 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 Herz 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/11825574/67227248_large.webp