# Herz blind plug with external thread G 3/4 and O-ring

**URL:** https://aio.lv/en/product--herz-1631922--12246927
**Data updated:** 2026-04-02 14:32 (EEST)
**Category:** Furniture Accessories
**Manufacturer:** Herz
**Manufacturer code:** 1631922
**EAN:** 3838963224334
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 7.84 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--herz-1631922--12246927

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Herz blind plug with external G 3/4 thread and included O-ring for sealing. Designed for closing pipe ports, valves or fittings with a G 3/4 connection, it provides a threaded mechanical closure and a compression seal via the O-ring. Suitable for plumbing, heating and industrial installations where a removable, sealed cap is required.

## Long description

Herz blind plug with external thread G 3/4 and O-ring is a threaded closure designed to seal open ports, valves or fittings with a G 3/4 connection. The product combines a mechanical external G 3/4 thread with an elastomer O-ring to provide a removable yet reliable seal suitable for plumbing, heating and many industrial applications. The design allows for simple installation and later removal without damaging the mating thread when maintenance or modifications are required.
Advantages
This blind plug provides a secure threaded closure with an additional compression seal from the supplied O-ring, reducing the risk of leaks at the joint. Its external thread and compact form make it compatible with standard G 3/4 female fittings. The removable design enables repeated use: the part can be installed, removed and resealed during routine maintenance. The combination of mechanical thread and elastomer sealing offers dependable performance in systems where a temporary or permanent cap is required.
Suitable for
Sealing unused ports on pipes and manifolds with G 3/4 connections
Closing service ports on heating radiators, boilers or plumbing units
Temporary caps during installation, testing or flushing of systems
Industrial equipment and machinery requiring removable sealed closures
Key specifications
Connection type: external thread with G 3/4 standard profile
Seal type: elastomer O-ring included for compression sealing
Intended applications: plumbing, heating and industrial installations
Function: removable threaded blind plug for temporary or permanent closure
Compatibility: designed to mate with female G 3/4 fittings and ports
How to use
Ensure the mating female G 3/4 thread and sealing surface are clean and free of debris. Place the supplied O-ring into the designated groove or seating area on the blind plug if it is not pre-installed. Hand-start the external thread into the female fitting, then tighten until the O-ring compresses against the sealing surface to achieve a leak-free joint; if required, use an appropriate wrench to reach the final snugness but avoid over-torquing to prevent thread damage. For removal, back off the plug by turning counter-clockwise and inspect the O-ring for wear; replace the O-ring if signs of deformation or hardening are present before reinstalling.
Usage recommendations
Use compatible O-ring materials and torque values suitable for the system medium and operating temperature. Periodically inspect the seal and threads during maintenance and replace the O-ring if leakage or material degradation is observed.

## FAQ

### How much does the Herz blind plug G 3/4 with O-ring cost, and is it available for purchase?

The price is 9.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 07.07.2026 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/12246927/68150169_large.webp