So I have a Litermeter3 I bought off Ray before he got out. He said he never used it, and I got for my new set up, but ended up with a controller, so I don't need it. 100 bucks. Looks like this.
Here's a link to it on SpectraPure's website.
http://spectrapure.com/DOSING-TOP-O...S/LiterMeter-III-Precision-Dosing-System-115V

Here's a link to it on SpectraPure's website.
http://spectrapure.com/DOSING-TOP-O...S/LiterMeter-III-Precision-Dosing-System-115V