Very well documented instruction manual.

Gives me accurate reading to help keep pool in good condition

There's no color chart with the strips. I can't tell which area is in need of chemicals.

The colors on the PH and Alkalinity are hard to differentiate, but I have not found a better alternative.

Up to date Test Strips and NOT about to expire. Sales staff are knowledgeable in products they sell.

I use them in my hot tub. Work very well. Quick results

This review is more than its products, its the great service & prices I have received. I use my spa for pain relief & physical works outs from having many surgeries and limitations, Thank you for the knowledge your techs share and fast delivery. Del

We use it to test our pool and it works out very well.

Seems the same as all other test strips, but did not come with a reference chart to correlate colors to values. Perhaps that's because this is a refill kit. So, I had to find one online and saved the picture on my phone so I can compare my results to the scale. I tried peeling off the label and everything-no luck.

Used these for years and they have worked for me perfectly