CO2 Drop Checkers

GLA Glass Orb CO₂ Drop Checker Kit - Complete and Ready to Use Take the guesswork out of CO₂ monitoring with our GLA Glass Orb CO₂ Drop Checker Kit. Designed for precision and simplicity, this elegant drop checker provides a reliable visual indicator of...

Glass planted aquarium CO2 drop checker. Use to measure CO2 levels at-a-glance. Included: One (1) Suction Cup One (1) bottle of pH Indicator Reagent (10 mL) **We recommend you also purchase GLA 4dKH analytical standard to create proper CO2 Indicator...

CAL AQUA LAB's Oracle is designed with elegance and exceptional functionality. Unique to the Oracle is a small white column at the center of the solution chamber. The white background of this column facilitates precise color identification when observing...

4° KH or 4 dKH LAB CERTIFIED ANALYTICAL STANDARD - 118ml (4 oz) bottle CO2 Level Indicator Fluid: 71.44ppm Alkalinity as CaCO3 * ships with / includes pipette for ease of filling drop checker with indicator fluid 4 dKH fluid is used in a CO2 drop...