API Freshwater Master Test Kit

API Freshwater Master Test Kit measures the 4 most important levels in freshwater aquariums quickly and accurately, including pH, high range pH, ammonia, nitrite, and nitrate. With scientific accuracy for professional results, the reusable kit comes with 4 glass test tubes with snap-tight caps and a convenient tub for easy storage. The kit contains 800 tests and includes 7 test solutions, easy-to-read instructions, 4 glass test tubes and a color chart.