Recommend good pH calibration solution

[joecooler]

So I bought the pH meter off tftestkits, tried to calibrate it w/the included solutions but don't fully trust my results. I also have the Taylor kit but I find it a bit hard to be certain about the readings. I was hoping to use the meter to help me learn how to read the colors on the Taylor kit. Anyway, I suspect that the pH meter is a bit high, so I'd like to try calibrating it again. Can anyone recommend a good source for a reasonably priced standard solution? The solution at tftestkits is only 2 oz so that's good for one calibration at best, I'd like to buy in larger, and hopefully cheaper, quantity so I can check the calibration periodically.

 

[ajw22]

pH 7 calibration solution is what you need.

Amazon.com : ph 7 calibration solution

 

[joecooler]

Great, thanks!