Checks for all four chemical levels with just one dip of the test strip into the pool. Dip a 4 way chlorine test strip for one second into your pool, remove it - results are ready in seconds. AquaChek yellow test strips are ideal for pool and spa owners who use chlorine as a sanitizer. Test strips come in easy-grip bottle with flip-top dispenser cap; includes chemistry insert and directions. Dip a 4 way chlorine test strip for one second into your pool, remove it - results are ready in seconds. To keep your pool looking its best with clear water, test each end of the pool at least twice a week. You should test your spa before every use.
- Free Chlorine
- Cyanuric Acid
- Easy to use - results in 30 seconds.
- Aquachek is the most accurate strip we have ever tested vs liquid tests.
- Contains: 50 Test Strips