Atlas Scientific pH 7.00 Calibration Solution 250ml (8oz)

Need ph solution get this one it’s good , it’s 7 ph not bad

I'm using this ph 7.0 calibration standard for hot tub testing. It is accurate and stable. When I use it, I only need about 10-15 ml. I pour the used solution portion into a separate clean plastic bottle and reuse it. The price is very reasonable and shipping was fast.

I ordered this because it was the cheapest available with Prime Shipping. It arrived in a sealed bag, in a box, I guess to prevent leaks during shipping. I calibrated my meter with this solution without issue & it seems like a decent product. It works just as well as the Blue Lab solution I previously have used. I will continue to order this solution as needed in the future, as long as it is the cheapest still.

Perfect for calibrating the digital pH meter I use for my aquariums. Should be enought to last for an awfully long time.

Thought my meter was broken. Now I know what i am dealing with definitely a great product.

should be 7.... my meter reads 6.87

Well don't know what happened but my pH meter is garbage. Which has NOTHING to do with the calibration solution. But will have it stocked up when I order a new ph meter

Does as it is supposed to. No problems here.