Features: Achieve accurate water quality analysis with our Water Test strips. Measure pH, alkalinity, hardness, free chlorine, and cyanuric acid levels for your pool or tub. Save time and money with our cost effective set of 25 test strips. Obtain fast and precise readings, surpassingtraditional liquid testing methods. Designed for fish tank enthusiasts, aquarium owners, and aquarium staff concerned about water quality. Monitor phosphate levels accurately to maintain a healthy fish tank. Suitable for various fish tank settings, including home aquariums, public aquariums, and pet shops. Ensure optimalwater chemistry for thewell being of your fish. Enjoy convenient testing with our user friendly test papers. Simply dip into the water and get quick results. Great for anyone who valuestheir fish tanks water quality. Specifications: Package Dimension: approx. 4.5x3x11cm/1.77x1.18x4.33inch Material: Paper Package Includes: 1 Bottle Aquarium Test Strip (25 Pcs) note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.