# Reducing nipple INVENA ZO-21-032 zinc-plated 5/4" x 3/4" pipe fitting

**URL:** https://aio.lv/en/product--invena-zo-21-032--11827991
**Data updated:** 2026-03-09 11:17 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** INVENA
**Manufacturer code:** ZO-21-032
**EAN:** 8435049312142
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 5.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--invena-zo-21-032--11827991

## 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 ZO-21-032 is a zinc-plated reducing nipple for pipe connections with thread sizes 5/4" and 3/4". It provides a durable metallic transition between different thread diameters in plumbing installations. Suitable for water, heating, and general piping systems where a secure threaded reduction is required; useful for repairs, retrofits and new installations.

## Long description

INVENA ZO-21-032 reducing nipple is a zinc-plated pipe fitting designed to join two threaded pipes of different diameters, with one end sized 5/4" and the other 3/4". The fitting creates a durable metallic transition between the larger and smaller threads, enabling a secure threaded connection in domestic and commercial plumbing systems. It is intended for use in water supply, heating circuits and general piping where a threaded reduction is required for repair, retrofit or new installation work.
Advantages
The zinc-plated surface provides corrosion resistance suitable for common plumbing environments while maintaining mechanical strength. A single-piece construction ensures alignment and tightness between mismatched thread sizes without the need for additional adapters. The standard thread profiles allow compatibility with commonly used threaded pipe fittings, facilitating quick installation and reliable sealing when used with appropriate thread sealant.
Suitable for
 Reducing threaded connections in domestic water supply lines
 Connecting different-diameter pipes in heating systems
 Repairs and retrofits where a durable metal reduction is required
 Temporary or permanent threaded transitions in general plumbing
Key specifications
 Material: zinc-plated metal
 Connection types: threaded male ends
 Thread sizes: one end 5/4" and other end 3/4"
 Construction: single-piece reducing nipple
 Typical applications: potable water, heating, general piping systems
How to use
Ensure both mating threads are clean and free of debris or old sealant. Apply an appropriate thread sealant or tape to the male threads as recommended for the system media (for example, PTFE tape for water lines). Hand-start the reduction nipple into the mating female thread to avoid cross-threading, then tighten with a suitable wrench until a secure, leak-free connection is achieved. Take care not to overtighten, which can damage threads or distort fittings. Verify system pressure and inspect for leaks after pressurizing.
Usage recommendations
Use compatible thread sealants and follow local plumbing codes. Avoid use with aggressive chemicals or media not compatible with zinc-plated surfaces. For high-corrosion environments, consider alternative materials or protective measures.

## FAQ

### How much does the Reducing nipple INVENA ZO-21-032 5/4" x 3/4" cost, and is it available for purchase?

The price is 6.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 106 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/11827991/67229095_large.webp