Milwaukee Instruments pH 7 Calibration Solution, 20 ml Sachets, case of 25 nutrients-and-supplements Secure Grow offers a unique

Secure Grow offers a unique and affordable way to protect your plantings from many nuisance pests

Kelp Extract (Ascophyllum nodosum)

Remote (detached) use of reflectors with Phantom ballasts from the 40 Series line should only be done with Hydrofarm brand reflectors having a built-in 15' cord

out the substrate quicker

Milwaukee Instruments pH 7 Calibration Solution, 20 ml Sachets, case of 25 nutrients-and-supplements Secure Grow offers a uniqueThis item is sachets Available in 220 ml bottles and 20 ml sachets. Traditional buffer solutions are packed in 220 ml leak proof bottles and are recommended for lab application. Sachets are sealed against light and air and are ideal for on the spot calibration. Simply open, insert the tester or electrode into the sachet and calibrate. Sachets are sold in boxes of 25 pieces.