Flairform Calibration Solution Kit - pH Buffer 4.0 & 7.0 (250mL) water chillers & heaters luscious plants that thrive and

luscious plants that thrive and fill your grow space

This provides a physical barrier

and chelated iron resolve nutrient deficiencies

Please note: The heat mat is not included in this product

Flairform Calibration Solution Kit - pH Buffer 4.0 & 7.0 (250mL) water chillers & heaters luscious plants that thrive andIntroducing the Flairform Calibration Solution Kit pH Buffer 4. 0 & 7. 0 pH meters must be regularly 'calibrated' (i. e. adjusted for accuracy) using standard pH buffer solutions which are made to an internationally agreed recipe. It is essential to calibrate using at least TWO pH buffers. These need to differ in pH by at least three pH units over the pH range being used. For nutrient solutions, pH buffer 4. 0 and 7. 0 are the ideal calibration