Worth the money By William on 3/29/10
William would recommend this product to a friend
I was using API testkits before purchasing the Alk and Cal kits from Saliferts. The testing procedure is so much more convenient and precise. I particularly like how you are able to just swirl the test vial vs having to cap and flip the testtube in the API kits. I always felt like this compromised the test as some liquid always seem to escape from the testtube. The larger Salifert test vials are easier to use and clean was well.