Examine your water for unwanted substances with our 17-in-1 Premium Drinking Water Test Strip. Each strip in this water test kit contains 16 parameters that instantly reveal results after being dipped in the sample vial. The final parameter is the bacteria tests, which come in two bottles. When using these bacteria tests to examine your water, the sample will turn yellow if bacteria are not detected. For easy storage, the test strips of this water test kit are sealed inside a bottle. These drinking water test strips and bottles can be used for tap, ground, or well water. This test strip kit has a manual to conduct a test quickly and easily. The outer box of this water quality test kit measures 4 inches long by 2.3 inches wide by 2.1 inches tall. Sold in a box that contains 100 test strips, 1 test strip bottle, 1 sample vial, 2 bacteria test bottles, and 1 instruction booklet.