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QD4s or QD3s?

  • QD4

    Votes: 3 43%
  • QD3

    Votes: 4 57%
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spongeman131

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Discussion starter · #1 ·
I'm looking to add some quick disconnect couplers to my loop in the next few months when I upgrade it. They seem like a really good idea and will be a great time/frustration saver when pieces break down or as I upgrade and swap pieces out.

I've been reviewing the available quick disconnects out there and the newer Koolance QD series seems to be considered at the top right now in terms of quality, performance and ease-of-use.

Looking at the reviews/performance charts of them the QD4 seems to be the way to go since among all of them it has the least restrictions because it's the largest.
Price is not really a concern however naturally space is. I believe I should be able to fit in QD4s but I wanted to get some opinions on if I need to use the QD4s at all and couldn't get away with QD3s.

The terminology of a "pair" seems to be used rather ambiguously when people talk to them so for clarity I'll define what I mean by "pair" here: 1x female and 1x male piece.


All in all I hope to add 5-6 "pairs". I'll list the restriction causing pieces currently in the loop and the important parts to make it easier to imagine what more the QD3/4s will contribute to the system:

-2x radiators
-CPU block
-2x GPU blocks
-MCP50X pump
- ~7' of tubing

So should I be looking at going for QD4s or will the QD3s not put that much extra restriction on my loop?
 
I've heard the same thing. Do you really want to buy a product from a company who will not stand behind their product? This is not a case of one finicky user. They used a poor coating and told their customer base to pound sand. Offering no replacement, nothing. Comparable alternatives exist, heck I think two of them post on the forum regularly.
 
Discussion starter · #7 ·
As in comparable alternatives to the QD line? There's Alphacool... and I haven't seen any else with the push-release mechanism. And I don't think the Alphacool ones some in as large of a size as the QDs do. They also provide more restriction. But I don't want to buy a shoddy product either. So what's this second alternative you're talking about?
 
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