Features:* * 7-in-1 Pool & Spa Water Quality Test Strips.* Easy to Distinguish: Color difference is obvious, easier to compare the color of the strip on the color chart.* Test at both ends of the pool twice a week for best results.* Immerse yourself in water for instant reading and comes in an easy-to-store container.* Ideal for pool and spa test.* Good water quality is essential for fish and plants in aquarium.* Regularly testing water quality values helps ensure that your fish live a healthy, happy and long life.* With the Aqua Quick Test, you can monitor 7 values that are crucial for good water quality: pH (acidity) KH (carbonate hardness) GH (general hardness) NO2 (nitrite) NO3 (nitrate) bromine (bromine) and chlorine.* Suitable for drinking water, aquarium, swimming pool and spa, industrial water, pond, hot spring waterSpecifications:* Item Type: SPA Swimming Pool Test Strips * Material: Paper * Color: As pictures * Quantity: 50pcs/bottle Package Included:1 Bottle SPA Pool Test Strips (total 50pcs)Note:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.