---
product_id: 1401613
title: "3/8\" NPT Female to 1/4\" NPT Male Brass Pipe Adaptor/Adapter Straight Reducer/Reducing Coupling Male to Female"
brand: "mettleair"
price: "R806"
currency: ZAR
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.za/products/1401613-3-8-npt-female-to-1-4-npt-male-brass
store_origin: ZA
region: South Africa
---

# Air/Vacuum compatible 3/8" NPT female 1/4" NPT male 3/8" NPT Female to 1/4" NPT Male Brass Pipe Adaptor/Adapter Straight Reducer/Reducing Coupling Male to Female

**Brand:** mettleair
**Price:** R806
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with Confidence!

## Quick Answers

- **What is this?** 3/8" NPT Female to 1/4" NPT Male Brass Pipe Adaptor/Adapter Straight Reducer/Reducing Coupling Male to Female by mettleair
- **How much does it cost?** R806 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/1401613-3-8-npt-female-to-1-4-npt-male-brass)

## Best For

- mettleair enthusiasts

## Why This Product

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

## Key Features

- • **Easy Installation:** User-friendly design ensures quick and hassle-free setup.
- • **Seamless Transition:** Easily connect different pipe sizes with this brass reducer.
- • **Precision Engineering:** Designed for a snug fit, minimizing leaks and maximizing efficiency.
- • **Versatile Applications:** Perfect for air and vacuum systems in various settings.
- • **Durable Brass Construction:** Built to withstand high pressure and resist corrosion.

## Overview

This 3/8" NPT Female to 1/4" NPT Male Brass Pipe Adapter is engineered for seamless transitions in air and vacuum systems, offering durability and precision for all your plumbing needs.

## Description

IMPORTANT NOTE: "Pipe Thread Size" DOES NOT directly correspond to Actual Dimensions of the thread.   Quantity: 1 (One) piece   Our quality barbed/threaded connectors/couplers are manufactured to the highest standards. They are perfect for connecting lines for air / pneumatic systems.

## Features

- Air / Vacuum

## Images

![3/8" NPT Female to 1/4" NPT Male Brass Pipe Adaptor/Adapter Straight Reducer/Reducing Coupling Male to Female - Image 1](https://m.media-amazon.com/images/I/51ckGjDcG9L.jpg)

## Available Options

This product comes in different **Number of Items** options.

## Customer Reviews

### ⭐ 1.0 out of 5 stars







  
  
    Size not as expected!
  

*by P***L on Reviewed in the United States on December 14, 2014*

Only on receipt did I discover the size was incorrect. It appears the NPT standard relates to the INTERNAL aperture of the pipe! Still don't have a connector to use!

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    this is the way to buy plumbing fittings
  

*by J***S on Reviewed in the United States on June 20, 2013*

Amazon is the way to buy plumbing fittings, the shipping is a lot less than the gas to drive to Home Depot.  After a couple trips to True Value and Home Depot to get this fitting (hooking up a pneumatic hose reel to compressor) which neither had in stock, I ordered it from Amazon.  It arrived, fit, and I could move on to the "honey do" list without having to spend half a day finding one freaking fitting.  I'll never try to buy specific/special  plumbing fittings at a store from now on.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Good Quality
  

*by T***R on Reviewed in the United States on March 7, 2017*

It works with the other project parts just fine, no leaks.

---

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**Shop now:** [https://www.desertcart.co.za/products/1401613-3-8-npt-female-to-1-4-npt-male-brass](https://www.desertcart.co.za/products/1401613-3-8-npt-female-to-1-4-npt-male-brass)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-03*