Higher Thinking Posted June 27, 2015 Share Posted June 27, 2015 So I decided to bust out my old pH controller and I ordered some calibration fluid and new probe. Well, I ordered 7 and 10, but it turns out my controller also requires 4 to calibrate. Does anyone have any 4 pH solution they wouldn't mind passing along? I know sometimes folks buy it in a bigger bottles, so I'm throwing it out there. I just don't want to have to put another order in. Thanks all! Quote Link to comment Share on other sites More sharing options...
LC Scott Posted June 27, 2015 Share Posted June 27, 2015 I have some. Pm me Quote Link to comment Share on other sites More sharing options...
ThePremiumAquarium Posted June 28, 2015 Share Posted June 28, 2015 If you don't end up finding any, we have a bunch of all of them in stock. They are behind the counter so just ask one of the guys for them. 1 Quote Link to comment Share on other sites More sharing options...
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