---
product_id: 17248596
title: "Koolance QD3-MSG4-BK QD3 Male Quick Disconnect No-Spill Coupling, Male Threaded G 1/4 BSPP *Black*"
brand: "koolance"
price: "€ 1.40"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.sk/products/17248596-koolance-qd3-msg4-bk-qd3-male-quick-disconnect-no-spill
store_origin: SK
region: Slovakia
---

# Durable black brass finish Precision G 1/4 BSPP threading No-spill automatic shutoff Koolance QD3-MSG4-BK QD3 Male Quick Disconnect No-Spill Coupling, Male Threaded G 1/4 BSPP *Black*

**Brand:** koolance
**Price:** € 1.40
**Availability:** ✅ In Stock

## Summary

> 🖤 Connect with confidence, disconnect without a drip.

## Quick Answers

- **What is this?** Koolance QD3-MSG4-BK QD3 Male Quick Disconnect No-Spill Coupling, Male Threaded G 1/4 BSPP *Black* by koolance
- **How much does it cost?** € 1.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/17248596-koolance-qd3-msg4-bk-qd3-male-quick-disconnect-no-spill)

## Best For

- koolance enthusiasts

## Why This Product

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

## Key Features

- • **Minimal Fluid Loss:** Automatic shutoff limits fluid release to just 0.2ml, protecting your setup from spills and damage.
- • **Premium Brass Build:** Robust brass construction with sleek black finish offers durability and a professional aesthetic for your rig.
- • **Exclusive Compatibility:** Designed specifically for Koolance QD3 female quick disconnects—join the elite circle of high-performance cooling pros.
- • **Precision Threading Fit:** G 1/4 BSPP male thread guarantees a secure, leak-proof connection directly into your water block or system.
- • **Seamless Quick Disconnect:** Effortlessly separate components with a patented no-spill design, ensuring zero mess and maximum uptime.

## Overview

The Koolance QD3-MSG4-BK is a high-precision, black brass quick disconnect coupling featuring G 1/4 BSPP male threading and a patented no-spill automatic shutoff mechanism. Engineered for seamless integration with Koolance QD3 female fittings, it minimizes fluid loss to 0.2ml, ensuring clean, efficient maintenance for advanced liquid cooling systems.

## Description

Koolance patented quick disconnect no-spill coupling with automatic shutoff. G 1/4 BSPP (parallel) thread male fitting for screwing directly into a water block or other component. It will only fit a Koolance QD3 female quick disconnect. After pulling the ring on the female QDC side, the quick-disconnect fittings will separate. Liquid on both sides will be automatically obstructed with approximately 0.2ml freed. Coolant volume lost upon disconnection will rise with internal pressure higher than 0.5kgf/cm2 (7psi).Additional Specifications• Materials: Brass, Chrome Plating, Stainless Steel, EPDM• Max Temp. Operating Tolerance: 100°C (212°F)• Max Pressure Tolerance @ 25°C: 8kgf/cm2 (113.8psi)• Fitting Thread: G 1/4 BSPP

## Features

- Koolance patented quick disconnect no-spill coupling with automatic shutoff.
- G 1/4 BSPP (parallel) thread male fitting for screwing directly into a water block or other component.
- It will only fit a Koolance QD3 female quick disconnect.
- After pulling the ring on the female QDC side, the quick-disconnect fittings will separate.
- Liquid on both sides will be automatically obstructed with approximately 0.2ml freed.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Brass |
| Brand | Koolance |
| Color | Black |
| Item Dimensions LxWxH | 1 x 1 x 1 inches |
| Connector Type | Coupling |
| Thread Size | 0.25 inch |
| Exterior Finish | Brass |
| Thread Type | BSPP |
| Item Weight | 0.02 Pounds |
| Number of Pieces | 1 |
| Manufacturer | Koolance |
| Part Number | QD3-MSG4-BK |
| Item Weight | 0.32 ounces |
| Product Dimensions | 1 x 1 x 1 inches |
| Item model number | QD3-MSG4-BK |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Koolance
- **Material:** Brass
- **Color:** Black
- **Finish Type:** Chrome
- **Product Dimensions:** 3.94"D x 3.94"W x 3.94"H
- **Special Feature:** Automatic Shut-Off
- **Item Weight:** 9.07 g
- **Control Method:** Touch
- **Is Dishwasher Safe:** No
- **Global Trade Identification Number:** 00829596909432

## Images

![Koolance QD3-MSG4-BK QD3 Male Quick Disconnect No-Spill Coupling, Male Threaded G 1/4 BSPP *Black* - Image 1](https://m.media-amazon.com/images/I/41V74x62KCL.jpg)
![Koolance QD3-MSG4-BK QD3 Male Quick Disconnect No-Spill Coupling, Male Threaded G 1/4 BSPP *Black* - Image 2](https://m.media-amazon.com/images/I/41cUyEQC0BL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ great item
*by C***N on December 8, 2021*

love them

### ⭐⭐⭐⭐ high quality quick connects that don't leak when disconnected
*by G***H on January 31, 2023*

First, keep in mind you must pair this with the Female version of the same size ( in this case Koolance QD3-FS10X16-BK QD3 ) and keep in mind your soft tube size (ID/OD) in my case this was ID=3/8" OD=5/8".these things are kind of on the expensive side, but they are all metal ( the others i found were plastic and reviews said they really didn't work to well after a few connect/disconnect actions ). These are industrial strength. I was planning to use them for all the connections in my loop ( because when draining a loop it kinda sucks to get water all over your pc and water and electricity are a bad combination ) however there is a drawback with these, they restrict water flow A LOT. So i used them for my drain tube and added one that i can blow air into to force all the water out of the loop and through the drain tube. I would highly recommend the Koolance QD3-MSG4-BK QD3 / and Koolance QD3-FS10X16-BK QD3 for this purpose.I'm subtracting one star because the Koolance did not discuss flow impendence which has a real impact on how much cooling you can get from your loop.

### ⭐⭐⭐ Convenient but fails over time
*by G***E on March 25, 2018*

These are very convenient, but will fail over time. I have used them for years and I believe they are a good add on to your system.

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**Shop now:** [https://www.desertcart.sk/products/17248596-koolance-qd3-msg4-bk-qd3-male-quick-disconnect-no-spill](https://www.desertcart.sk/products/17248596-koolance-qd3-msg4-bk-qd3-male-quick-disconnect-no-spill)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-12*