# Reducing nipple INVENA ZO-21-403, galvanized steel, 3/2 x 1"

**URL:** https://aio.lv/en/product--invena-zo-21-403--11828508
**Data updated:** 2026-03-09 14:36 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** INVENA
**Manufacturer code:** ZO-21-403
**EAN:** 8435049375505
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 5.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--invena-zo-21-403--11828508

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

INVENA reducing nipple ZO-21-403 is a galvanized steel pipe fitting with a 3/2 x 1" connection intended to join or reduce pipe sizes in plumbing systems. Designed for mechanical joining of threaded pipes, it provides corrosion-resistant performance from its zinc coating and is suitable for potable water, heating and general utility installations where threaded reduction is required.

## Long description

INVENA reducing nipple ZO-21-403 is a galvanized steel threaded fitting designed to connect pipes of different diameters in plumbing and heating systems. The fitting reduces from 3/2 to 1" and is intended for mechanical joining of threaded steel or compatible metal pipes. A zinc coating provides basic corrosion resistance suitable for potable water, heating circuits and general utility installations where a threaded reduction is required.
Advantages
The galvanized steel construction delivers mechanical strength and a protective zinc layer that helps resist rust and surface corrosion in wet environments. Threaded ends enable straightforward assembly and disassembly without specialized welding equipment, while the compact nipple form minimizes space requirements at the connection point. The design supports standard threaded pipe systems and allows reliable reduction between different pipe diameters.
Suitable for
 Reducing threaded connections in potable water supply lines
 Connecting pipe sections in central heating systems
 General plumbing repairs and modifications
 Temporary or permanent threaded joints in utility installations
Key specifications
 Material: galvanized steel
 Connection type: threaded nipples
 Size reduction: 3/2 x 1" (reducer configuration)
 Surface finish: zinc-coated for corrosion resistance
 Application fluids: potable water, heating media, general utility fluids
How to use
Prepare both mating threaded pipe ends by cleaning threads and, if required, applying an appropriate pipe sealant such as PTFE tape or thread compound rated for the intended fluid. Hand-start the nipple into the larger diameter pipe, then tighten with a suitable wrench until a secure, leak-minimizing joint is achieved; avoid over-tightening to prevent thread damage. Finally, assemble the smaller diameter pipe onto the opposite end using the same process and test the system for leaks under operating pressure.
Usage recommendations
Verify compatibility of the reducing nipple with the pipe material and fluid type before installation. Use recommended thread sealants for potable water systems and follow local plumbing codes. For installations exposed to aggressive environments or where long-term corrosion resistance is critical, consider additional protective measures or alternative materials.

## FAQ

### How much does the Reducing nipple INVENA ZO-21-403 cost, and is it available for purchase?

The price is 6.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 104 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 16.07.2026 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 INVENA 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 INVENA 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/11828508/67229509_large.webp