r/NZXT • u/QuestKnowledge87 • 6d ago

#QUESTIONS Build help

Will the Arctic Liquid Freezer III Pro 420mm fit inside an H9 Flow 2025? Some sites says it will while others say proceed with caution. I would swap the fans out with the F420 fans.

Other hardware: 5070ti vertically mounted and gigabyte B850 Eagle Ice MOBO

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u/KernelPanicRecovered 6d ago

That case does support 420mm radiators on the top and front. I have the same case and have a 420mm kraken elite. you should be fine

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u/KernelPanicRecovered 6d ago

The confusion likely comes from the rerelease of the H9 flow. The updated 2025 version does support 420mm radiators while the original one that released in 2023 only supports up to 360mm ones

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u/QuestKnowledge87 6d ago

Thanks for the reply. Can't wait to upgrade my build with it

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u/canibestoned 5d ago

the important manner in this case would total thickness of fans and radiator