Apera Instruments GroStar pH Calibration Kit, pH 4/7 - 8 oz. Each Grow Light Extension Cords & Power Strips Veg Week 1 Veg Week

Veg Week 1 Veg Week 2 Bloom Week 1 Bloom Week 2 Bloom Week 3 Silica 1

Highly accurate

and other toxins from the water

If you want to increase the height of your LITE LINE grow tent to 7'7"

It is soft to the touch and also helps to protect the longevity of the Dual Carbon Filter

Apera Instruments GroStar pH Calibration Kit, pH 4/7 - 8 oz. Each Grow Light Extension Cords & Power Strips Veg Week 1 Veg WeekGroStar by Apera pH calibration kit (pH 4 7, 8 oz. each) Kit Includes: (x1) 8 oz. pH 4. 0 calibration solution (x1) 8 oz. pH 7. 0 calibration solution pH measuring equipment must be cleaned and calibrated regularly to ensure accurate readings. High accuracy (0. 01 pH): standardized against NIST Certified pH references within 0. 01 pH at 25C (77F). ideal for the calibration of all pH meters Color coded, double sealed, 1 year shelf life Expiration date