# Under-radiator valve connection Red Marka ABG PG20 (20 mm) for heating systems

**URL:** https://aio.lv/en/product--red-marka-abg-pg20--11826580
**Data updated:** 2026-03-09 11:16 (EET)
**Category:** Heating Radiators
**Manufacturer:** Red Marka ABG
**Manufacturer code:** PG20
**EAN:** 5902814621998
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--red-marka-abg-pg20--11826580

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Under-radiator valve connection Red Marka ABG PG20 is a 20 mm fitting designed for connecting radiators to central heating systems. Manufactured by Red Marka ABG, model PG20 provides a compact under-radiator feed solution suitable for domestic and commercial radiators. Use for inlet/outlet connections where a concealed lower feed is required; compatible with standard 20 mm pipework.

## Long description

Under-radiator valve connection Red Marka ABG PG20 (20 mm) is a compact fitting engineered for connecting radiators to central heating systems using a concealed lower feed. Designed for standard 20 mm pipework, this under-radiator connection provides a neat and unobtrusive inlet/outlet solution for both domestic and commercial radiator installations. The product is intended to integrate with common heating circuits where a lower, hidden connection is required.
Advantages
This under-radiator valve connection offers a compact design that facilitates a clean installation with reduced visible piping. Built for compatibility with 20 mm pipework, it simplifies the connection process and helps maintain consistent water flow to the radiator. The fitting is suitable for use in tight spaces beneath radiators and supports concealed lower-feed layouts, enabling a tidy aesthetic without compromising hydraulic performance.
Suitable for
 Connecting domestic panel and column radiators with 20 mm inlet/outlet pipes
 Commercial heating installations requiring concealed lower feed connections
 Retrofit projects where visible pipework needs to be minimized
 New-build heating systems using standard 20 mm copper or plastic pipes
Key specifications
 Connection diameter: 20 mm suitable for standard 20 mm pipework
 Type: under-radiator (lower feed) valve connection
 Compatibility: designed for use with domestic and commercial radiators
 Installation location: concealed lower feed beneath the radiator
How to use
Shut off the heating circuit and drain the section to be worked on before installation. Prepare the 20 mm pipes by cutting them square and deburring the ends, then position the under-radiator connection on the radiator inlet/outlet. Secure the fitting according to the radiator manufacturer’s instructions and the type of piping used (compression, push-fit or soldered joint as applicable). Restore the system, refill and purge air from the radiator to ensure correct circulation and check for leaks at the connection.
Usage recommendations
Use matching 20 mm pipe materials and compatible jointing methods to ensure a reliable seal. Verify radiator compatibility and follow local heating installation codes. After installation, perform a pressure check and bleed the radiator to remove trapped air for optimal heat transfer.

## FAQ

### How much does the Under-radiator connection Red Marka ABG PG20 cost, and is it available for purchase?

The price is 7.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 49 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 03.07.2026 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 Red Marka ABG 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 Red Marka ABG 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/11826580/67228098_large.webp