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Zip-Zag Original Sandwich Bags (25 bags per pack)
penetrating deeper into the plant foliage
Seedlings and cuttings treated with Cleanse have more vigor and are more likely to grow into robust plants
Blade Diameter 17
Bluelab pH 4.0 Calibration Solution 500ml Pro-Mix Zip-Zag Original Sandwich Bags (25Bluelab pH 4. 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.
