DIPSTIK Phosphate Test Kit for Pool,50 Strips Strip Quick and Accurate Swimming Hot Tub Spa Water Testing

IDEAL PHOSPHATE LEVEL: phosphate level between 0 to 100ppb,Maintaining very low phosphate levels for clean and healthy water in pools and hot tubs PHOSPHATE TEST STRIPS: Water test strips are made of high-quality fiber paper and no color bleeding pads,can easily provide instant and reliable results EASY&FAST&ACCURATE:1. Add 5ml water sample into colorimetric tube 2.Put the strip into the colorimetric tube, close the cover tightly and turn upside down twice for 10 seconds. 3.Wait for 2 minute and then take out the test strip. 4.Follow the instructions to compare the color chart WIDELY USE PHOSPHATE TEST KIT: Water testing kit Phosphate contains 50 phosphate tests strips and 1 test tube with cap for pools, spas, and hot tubs. FOR BEST RESULTS: Keep your hands dry before taking out the strips, read under the natural light, Keep wet fingers out of the bottle, and store test strips in a cool, dry place. Test strips are not reusable