October 25, 2013, 12:08 PM
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 | Moderator | | Join Date: Feb 2007 Location: Grande Prairie, AB
Posts: 8,920
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What fan will you be using? The RX radiators are meant to be used w/ low speed fans (sub 1000 rpm). The EX radiators are designed for medium speed (1200 - 1800 rpm). Make your choice depending on that.
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