Graduated Round Container 64 oz / 2000 ml (20/Cs) It is fully biodegradable and

It is fully biodegradable and non-toxic to animals

It has an accuracy of + or - 50 ppm and has the capability to read CO2 levels as high as 9999 ppm

Ideal for air movement from an air pump to air stones

Comes in a rugged

Graduated Round Container 64 oz / 2000 ml (20/Cs) It is fully biodegradable andGraduated Containers feature easy to read US oz and metric mm graduations. Positioned right on the container is our simple conversion chart for use as a reference guide for other commonly used measurements Graduated Containers are made from an impact resistant and translucent plastic for durability and clear view of liquid levels. Available in 5 different sizes: 8 oz 250 ml, 16 oz 500 ml, 32 oz 1000 ml, 64 oz 2000 ml and 120 oz 5000 ml.