AquaChek High Range Chlorine Test Strips - 100 Strips

The Items were purchased to verify chlorine concentration for CoVid 19 disinfection. These strips read only up to 600 ppm. I recommend that you approach the level carefully, with a known amount and concentration of bleach. Our level was set at 600 so it would be hard to determine if the level was exceeded, other tests go higher but do not read at 600 ppm, These were easy to use and suited our purpose.

I've ordered several times and the service has been amazing!!

I buy about 400 of these a year. Always work great and are super easy to use.