# Koolance QD3 quick-disconnect with bulkhead straight male G1/4" internal thread, no-spill, silver

**URL:** https://aio.lv/en/product--koolance-qd3-mtfg4-p--12259130
**Data updated:** 2026-04-14 22:31 (EEST)
**Category:** CPU Coolers & PC Cooling Systems
**Manufacturer:** Koolance
**Manufacturer code:** QD3-MTFG4-P
**EAN:** 8295969151296
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Quick-disconnect coupling for liquid cooling systems: Koolance QD3 model with a straight male bulkhead connection and G1/4" internal thread. Designed as a no-spill connector for easy, tool-free separation of coolant lines through a chassis or panel. Suitable for PC water-cooling loops and small cooling installations requiring a compact bulkhead passthrough.

## Long description

The Koolance QD3 quick-disconnect is a no-spill bulkhead coupling designed for liquid cooling systems. This straight male bulkhead connector features a G1/4" internal thread and a compact form factor that allows coolant lines to pass through a chassis or panel without tools. It is intended for PC water-cooling loops and other small cooling installations where a secure, easy-to-separate passthrough is required.
Advantages
This quick-disconnect provides tool-free separation of coolant lines while minimizing spillage during disconnection. The straight male bulkhead design and G1/4" internal thread make it compatible with common water-cooling fittings, and the compact silver finish suits tight mounting locations and visible panel installations. Its no-spill mechanism reduces liquid loss and simplifies maintenance or component swaps.
Suitable for
PC water-cooling loops and custom liquid-cooled builds
Small cooling installations where a panel or chassis passthrough is needed
Systems that require occasional disconnection for maintenance, transport or component replacement
When it may not be suitable
This coupling is intended for low-pressure liquid-cooling loops typical in PC and small-system applications; it may not be appropriate for high-pressure industrial fluid systems or applications with aggressive chemicals not compatible with typical cooling materials. For systems requiring threaded fittings other than G1/4" internal thread or angled bulkhead orientations, a different fitting style may be required.
Key specifications
Connection type: quick-disconnect bulkhead coupling, straight male
Thread type: G1/4" internal thread
Sealing: no-spill mechanism designed to minimize coolant loss during separation
Finish/color: silver
Typical use: PC water-cooling and small liquid-cooling installations
How to use
Install the bulkhead portion into a chassis or panel cutout and secure it according to mounting allowances of the surrounding hardware. Thread-compatible fittings or tubing with appropriate adapters are attached to the G1/4" internal thread. To disconnect, depress or actuate the quick-disconnect sleeve as designed to release the mating half; the no-spill mechanism will retain most coolant within the coupling to reduce drips. Reconnect by aligning the mating halves and pushing until the coupling locks.
What to consider before purchase
Confirm compatibility with existing fittings and tubing, specifically the G1/4" internal thread requirement
Ensure the materials and sealing design are suitable for your coolant type and operating temperature range
Verify chassis or panel thickness and cutout dimensions to accommodate the bulkhead mounting
Usage recommendations
Use the Koolance QD3 quick-disconnect in accessible locations where occasional separation is expected. Before first use, test the connection for leaks on a bench with the intended coolant and operating conditions. When disconnecting, hold a towel or drip tray underneath to catch any residual fluid and follow system-specific maintenance procedures to avoid contamination.

## FAQ

### What payment options are available?

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### 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 Koolance 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 Koolance 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

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