Apera Instruments GroStar pH Calibration Kit, pH 4/7 - 8 oz. Each Grow Light Extension Cords & Power Strips If you want to increase

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

This concept keeps the grower from having to purchase multiple products that virtually do the same thing

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

and other toxins from the water

Apera Instruments GroStar pH Calibration Kit, pH 4/7 - 8 oz. Each Grow Light Extension Cords & Power Strips If you want to increaseGroStar 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