Note: This fillcap is thicker than the plastic cap supplied with bay reservoirs and may sit above the top of the reservoir. - M20 Thread. - Matte Black Electroplated Brass. WatercoolingUK was born back in 2004, when watercooling was a very new idea, very much un-tested and struggling to break through into what we now see as the mainstream of computer cooling, for high end systems or for systems wanting ultimate silence, or just because it looks cool right?.
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