All you have to do is dip the test strip into your water, wait a few seconds and then compare your strip to the colored chart o...  Read More

All you have to do is dip the test strip into your water, wait a few seconds and then compare your strip to the colored chart on the back of the product container.  Read Less

It is fast, accurate, and easy to read.

It is fast, accurate, and easy to read.  Read Less

You dip the stick for a couple seconds, and compare it to the chart on the back of the bottle.

You dip the stick for a couple seconds, and compare it to the chart on the back of the bottle.  Read Less

We used to purchase these test strips from our local pool store for a higher price.

We used to purchase these test strips from our local pool store for a higher price.  Read Less

In a spa aim for 5ppm chlorine as it will only lower from there.

In a spa aim for 5ppm chlorine as it will only lower from there.  Read Less