Sailifert test kits

[Michael7979]

I have a CA, ALK, and PH test kits,(sailifert), that I got about 2 years ago.

So the question is.........How long will they be good for? One has an exp. date, (says it's good), but the two others don't. Wondering if they could last 2 years and still be good?

[Randy Holmes-Farley]

The alk kit will be OK. The pH kit may read low when old. Not sure on calcium.

[Michael7979]

TY appreciate the answers!

[Randy Holmes-Farley]

You're welcome.

Good luck. :)