Lamotte Chlorine DPD 1B 60ML P-6741-H

I didn't realize this when I bought the product but this was a much larger size then the one that came with the unit. This one is about 3x more volume. That is why it cost more, just know it will not fit in the slots cut into the case of the nomal test kit.

It works exactly as advertised.

The product has worked well and is much cheaper than it sells for other places.

it provides with wrong reading

Don't expect these to last more than one summer or even a whole year before they darken and give bad results. If you only use them occasionally it's pretty frustrating to spend so much and get so little, esp considering you can buy a whole kit from other brands for this price. Also how can they be reliable if they degrade so fast?