Dymax Co2 Double Ended Bubble Counter, Clear/Silver

Bubble Counter with a non-return function to prevent the backflow when the pressure changes. Small and compact. Easy to install & replace. Made from tough and high quality material for long term use. Dymax Co2 Bubble Counter is design for both planted & reef aquarium. It is used to gauge the amount of Co2 applied to the plants for photosynthesis Dymax Co2 Bubble Counter provide accurate reading of Co2