Which test kit?

[CarlD]

I took a quick look on Taylor's website and didn't see what the real difference is between the K-2006 and K-2005 test kits except that the K-2006 kit is more expensive. What did I miss?

K-2005 is a DPD test kit. K-2006 is a FAS-DPD test kit.
BIGGGG difference!
DPD you can only test to 15ppm on your chlorine.
FAS-DPD you can test to 50ppm or even 100ppm.

We recommend the K-2006 or K-2006C (more reagents).

However, the Leslie's FAS-DPD Service Test Kit is similar and you can get it instead. It's simply Taylor re-agents in a Leslie's box.