Test for chlorine

I have a pretty good drops based test kit, but the Chlorine part of it only tests up to 3 ppm. Since my CYA is around 40, I need to run higher FC, so I need a different test for it. Leslie's sells a kit for just chlorine that says FAS DPD. Is this the one I need, and can I use it and then use my regular test kit for all the other tests? Or do I need to buy a whole new kit? I'd get one of Ben's but I can't wait 6 to 8 weeks for it.

Judy

Yes, FAS-DPD is what you need.