---
product_id: 530709120
title: "Straight Coupling Copper Fittings 3/8 Inch Copper Pipe Welding Joint Connector Adapter For HVAC Air Conditioning"
brand: "zowzea"
price: "$30"
currency: NZD
in_stock: true
reviews_count: 9
category: "Zowzea"
url: https://www.desertcart.nz/products/530709120-straight-coupling-copper-fittings-3-8-inch-copper-pipe-welding
store_origin: NZ
region: New Zealand
---

# Precise 3/8 inch (9.52mm) inner diameter fit Optimized for seamless welding & airtight joints 99.9% pure copper for ultimate durability Straight Coupling Copper Fittings 3/8 Inch Copper Pipe Welding Joint Connector Adapter For HVAC Air Conditioning

**Brand:** zowzea
**Price:** $30
**Availability:** ✅ In Stock

## Summary

> 🔥 Connect with Confidence: The Copper Coupling Pros Trust 🛠️

## Quick Answers

- **What is this?** Straight Coupling Copper Fittings 3/8 Inch Copper Pipe Welding Joint Connector Adapter For HVAC Air Conditioning by zowzea
- **How much does it cost?** $30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/530709120-straight-coupling-copper-fittings-3-8-inch-copper-pipe-welding)

## Best For

- zowzea enthusiasts

## Why This Product

- Trusted zowzea brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Fit Design:** Engineered with a 3/8 inch inner diameter and 0.7mm thickness for a snug, leak-proof connection.
- • **Bulk Pack Convenience:** Includes 5 straight coupling fittings—perfect for professional projects or emergency repairs.
- • **Premium Copper Purity:** Crafted from over 99.9% pure copper for unmatched strength and corrosion resistance.
- • **HVAC-Ready Performance:** Specifically tailored for HVAC and refrigeration systems ensuring optimal flow and efficiency.
- • **Easy Welding Installation:** Smooth surface and ideal dimensions make welding quick, clean, and reliable every time.

## Overview

The ZOWZEA Straight Coupling Copper Fittings are precision-engineered 3/8 inch connectors made from over 99.9% pure copper. Designed for HVAC and refrigeration applications, these durable fittings ensure airtight, efficient pipe connections with easy welding installation. Each pack contains five robust couplings, ideal for professional-grade air conditioning and plumbing projects.

## Description

desertcart.com: ZOWZEA Straight Coupling Copper Fittings 3/8 Inch Copper Pipe Welding Joint Connector Adapter For HVAC Air Conditioning : Industrial & Scientific

Review: Good but... - Good couplings, just need to be careful as they fit a tad loose on linesets. You can use a debur tool to make the mouth flare very slightly to get it to hold snugly. You want it snug when brazing so you can have as little gap bet week connecting line sets as possible (more gap = less efficiency/flow)
Review: They fit - desertcart knows the difference between tubing size and pipe size. Search for 3/4 tubing sizes on Lowes or Home Depot and they come back with pipe sizes.

## Features

- Function: Couplings Copper Fittings are used to connect two pieces of copper pipe together，Which widely used for HVAC and refrigeration pipework - essential products for any air conditioning install project.
- Material: Made of high-quality copper, the copper content is greater than 99.9%, easy welding, strong and durable.
- Size: Inner diameter: 9.52 mm/0.37"; Length: 16mm/0.63"; Thickness: 0.7mm, package contains 5 straight copper coupling fittings
- Installation: Clean the plumbing and Welding Joint, and then use welding tools to seal the adapter.
- Note: Please confirm the size before ordering

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BWK3CX4M |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #16,858 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #355 in Pipe Fittings |
| Brand | ZOWZEA |
| Color | Copper |
| Connector Type | Coupling |
| Customer Reviews | 4.5 4.5 out of 5 stars (223) |
| Date First Available | April 6, 2023 |
| Exterior Finish | Copper |
| Included Components | Copper Coupling 5pcs |
| Item Weight | 0.317 ounces |
| Item dimensions L x W x H | 0.37 x 0.62 x 0.37 inches |
| Item model number | ZW-0002 |
| Manufacturer | ZOWZEA |
| Material | Copper |
| Number of Pieces | 5 |
| Part Number | ZW-0002 |
| Product Dimensions | 0.37 x 0.62 x 0.37 inches |
| Set Name | 1 |
| Size | 3/8 Inch |
| Style | Pack Of 5 |
| Thread Size | 0.375 inch |
| Thread Type | NPT |

## Product Details

- **Brand:** ZOWZEA
- **Color:** Copper
- **Connector Type:** Coupling
- **Exterior Finish:** Copper
- **Item dimensions L x W x H:** 0.37 x 0.62 x 0.37 inches
- **Material:** Copper
- **Number of Pieces:** 5
- **Size:** 3/8 Inch
- **Thread Size:** 0.375 inch
- **Thread Type:** NPT

## Images

![Straight Coupling Copper Fittings 3/8 Inch Copper Pipe Welding Joint Connector Adapter For HVAC Air Conditioning - Image 1](https://m.media-amazon.com/images/I/61+3lxchXAL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good but...
*by H***O on February 4, 2024*

Good couplings, just need to be careful as they fit a tad loose on linesets. You can use a debur tool to make the mouth flare very slightly to get it to hold snugly. You want it snug when brazing so you can have as little gap bet week connecting line sets as possible (more gap = less efficiency/flow)

### ⭐⭐⭐⭐⭐ They fit
*by T***W on February 26, 2026*

Amazon knows the difference between tubing size and pipe size. Search for 3/4 tubing sizes on Lowes or Home Depot and they come back with pipe sizes.

### ⭐⭐⭐⭐⭐ As ordered
*by M***E on December 25, 2025*

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## Frequently Bought Together

- ZOWZEA Straight Coupling Copper Fittings 3/8 Inch Copper Pipe Welding Joint Connector Adapter For HVAC Air Conditioning
- Harris Solder Kit SB861 & SCPF4 - Stay-Brite #8 Silver Bearing Solder with Flux

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**Shop now:** [https://www.desertcart.nz/products/530709120-straight-coupling-copper-fittings-3-8-inch-copper-pipe-welding](https://www.desertcart.nz/products/530709120-straight-coupling-copper-fittings-3-8-inch-copper-pipe-welding)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-08*