API Freshwater Master Test Kit for Aquariums 5.3x6.8x4.85"

The Freshwater Master Test Kit measures freshwater aquariums' 4 most important levels accurately and quickly. These 4 levels include pH, high range pH, ammonia, nitrate. The reusable master test kit comes with 4 snap-tight capped glass test tubes and a holding tub for convenience and easy storage.

Includes instruction manual with a color chart that gives information on correcting unsafe water conditions. Testing your aquarium water has never been so easy or accurate!