QUICK & EASY: Simplify your pool and spa testing with our easy pool testing strips. Just dip our hot tub test strips into the water for 2 seconds, wait for 30 seconds, and compare the results accurately to the provided color chart.FREE E-BOOK: Gain access to valuable insights and tips on using our pool and spa test strips and maintaining balanced chemical levels with our complimentary eBook, enhancing your pool testing experience.ACCURATE & RELIABLE: Our swimming pool test strips deliver highly precise readings, ensuring the safety and cleanliness of your pool or hot tub water. Utilize our pool strips at least twice a week for optimal maintenance.TIPS FOR USAGE: Ensure the longevity and effectiveness of your pool test strips by keeping them away from moisture and light, securely closing the container after use, and using them within 90 days of opening.AFFORDABLE 7-IN-1 POOL TESTING KIT: Our 100 pool test strips provides an affordable, all in one pool water testing kit for various chemicals including Free Chlorine, Alkalinity, pH levels and more! Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin