Bluelab pH 7.0 Calibration Solution - 250ml Starter Kit Gro Storm contains a blend

Gro Storm contains a blend of kelp

Everything you need to clean

13mm pipe = Outside Diameter 16mm/Inside Diameter 13mm

Excellent for when your plants are under stress and will help maintain healthy plants

Growers aiming for strong root development and higher yields

Bluelab pH 7.0 Calibration Solution - 250ml Starter Kit Gro Storm contains a blendIt is recommended that pH instruments are cleaned and calibrated at least monthly to provide you with the most accurate reading. pH measuring equipment is calibrated to pH 7. 0 first (buffer) then to pH 4. 0 (slope). Essential for use with all Bluelab pH products for the calibration of Bluelab pH Probes. To ensure solutions remain accurate: Avoid cross contamination Decanter into a smaller plastic cup Discard sample after use Store in a cool dark