Bluelab pH 7.0 Calibration Solution DE Calcium plays a major role

Calcium plays a major role in cell wall composition and also helps maintain chemical balances in the soil

Doesn't Produce Heat

easy to replace

Packed with nutrients from ocean based bi-products

The grow light cables and grow light accessories eliminate the need for the typical mess of LED lighting cables

Bluelab pH 7.0 Calibration Solution DE Calcium plays a major roleBluelab pH 7. 0 Calibration Solution ensures pH measuring equipment is 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 and with the lids securely tightened. Case of 6 Bottles Each bottle contains 500 ml 16. 9 fl oz Bluelab pH Pen Cleaning Instructions