***Colorimetric Tube not Included*** Phosphate Test Kit, Phosphate Test Kit for Hot Tub, Swimming Pool and Spa, 50 Counts Phosphate Test Strips

Additional Details from the Manufacturer

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More features

• 50 Phosphate Test Strips: Each package contains 50 phosphate test strips
• Easy to Use: 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（colorimetric tube not included）
• Phosphate Test Kit Pool: Excessive phosphates in your pool can promote algae growth and complicate the maintenance of optimal water chemistry.
• Pool Phosphate Testing: Our phosphate water tests are designed to monitor phosphate levels in diverse water sources such as pools, spas, and hot tubs.
• Accurate Phosphate Test Kit: Our phosphate testing kits feature high quality materials , ensure the precision of your test results.