A little over a month ago we purchased our first pool (Intex 22 x52). I asked my husband to order a test kit and to my dismay he ordered a generic kit from Amazon (the least expensive). When I asked him to oder the TF 100 his exact words were , " You get what you get now don't throw a fit" (We say this to our grandchildren ). Needless to say, I has not a happy camper. Fast forward to last night... My husband asked what I wanted for my birthday and after thinking for a few minutes I blurted out the TF 100 test kit. This morning when I checked our email I saw that he ordered it for me . What a wonderful birthday present. I cannot wait to post my true pool testing results.