Wow. Answering this is a hoot!

If we've answered that question once this season, we've answered 500 times. But this is the first time, I recall someone asking. Normally, we answer because WE know they need to know, not because THEY have realized they need to know.

Anyhow, the answer is, "You need a Taylor K2006. Full info is in the test kit page linked in my signature. Meanwhile, if you maybe able to get a HTH 6-way kit at a Walmart near you check availability). It's a private labeled Taylor kit that is compatible with the K2006."