Bluelab pH 7.0 Calibration Solution 250 ml phcontrol 2 micron filter patch and

2 micron filter patch and a self-healing injection port

making them more available to microbes and to your plants

the better your end product

simply at a slower rate

Fish Protein Hydrolysate

Bluelab pH 7.0 Calibration Solution 250 ml phcontrol 2 micron filter patch andBluelab pH 7. 0 Calibration Solution" pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7. 0 first (buffer) then to pH 4. 0 (slope). Calibration Solution should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened."