# Reducer coupling Opal 246-33V screw-on M4 galvanized 6/4 x 5/4 inch

**URL:** https://aio.lv/en/product--opal-246-33v--11197336
**Data updated:** 2026-02-14 19:35 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** Opal
**Manufacturer code:** 246-33V
**EAN:** 5907791611482
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 5.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--opal-246-33v--11197336

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

Opal 246-33V is a screw-on M4 galvanized reducer coupling designed to connect pipes with different diameters (6/4 x 5/4 inch). The fitting provides a durable zinc-coated surface for corrosion resistance and reliable threaded connection. Suitable for plumbing and heating installations where a secure transition between specified pipe sizes is required.

## Long description

Opal 246-33V screw-on M4 galvanized reducer coupling is designed to join pipes of different diameters, providing a secure threaded transition between 6/4 inch and 5/4 inch plumbing or heating lines. The coupling features a zinc-coated surface that improves corrosion resistance and extends component service life in typical domestic and commercial installations. Its screw-on M4 thread form ensures a reliable mechanical and sealed connection when used with appropriate sealing materials and proper installation technique.
Advantages
This galvanized reducer coupling offers durable corrosion protection thanks to its zinc coating, making it suitable for environments with occasional moisture exposure. The screw-on M4 thread provides a straightforward assembly process and consistent mechanical engagement. The coupling's dimensional design ensures compatibility with the stated 6/4 x 5/4 inch pipe sizes and supports standard plumbing and heating applications without requiring special adapters.
Suitable for
 Connecting 6/4 inch to 5/4 inch metal or compatible threaded pipe sections
 Plumbing repair and retrofit work in residential and commercial systems
 Heating system pipe transitions where a threaded reducer is required
 Applications requiring a zinc-coated fitting for improved corrosion resistance
Key specifications
 Material finish: Galvanized (zinc coated) surface for corrosion resistance
 Connection type: Screw-on threading, M4 thread form
 Nominal pipe sizes: Reducer for 6/4 inch to 5/4 inch diameters
 Application: Suitable for plumbing and heating piping transitions
 Mechanical characteristics: Designed for threaded, non-welded joins
How to use
Ensure both pipe ends are clean, free of burrs and aligned before installation. Apply an appropriate thread sealing product such as PTFE tape or thread sealant to the male threads according to the sealant manufacturer's instructions. Hand-start the coupling onto the male thread and tighten with a suitable wrench until the joint is snug; avoid excessive torque that could damage threads or deform the fitting. After assembly, check the connection for leaks under working pressure and retighten if necessary within recommended torque limits.
Usage recommendations
Use the Opal 246-33V reducer coupling in systems compatible with galvanized fittings and where threaded transitions are acceptable. Avoid use in highly corrosive chemical environments or with dissimilar metals that may cause galvanic corrosion unless appropriate isolation measures are applied. Periodically inspect threaded joints for signs of corrosion or leakage and replace the fitting if coating damage or thread wear is detected.

## FAQ

### How much does the Reducer coupling Opal 246-33V M4 galvanized 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 — 2 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 01.07.2026 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 Opal 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 Opal 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/11197336/61980071_large.webp