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ModMyMods has the 5L clear for US $27.00 each.
I don't know where you are in Canada, but shipping to Vancouver, BC for 2 jugs is $69.16.
Where the DP Ultra may be interesting going forward, is a hint from Stephan about something for 'quality control of your coolant' being released in a few weeks.
I assume it will be an inline fitting with a couple of probes to check conductivity, and will probably be optimized for DP Ultra.
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