Bluelab pH 7.0 Solution Sachets (30) Shipping Growing hydroponically is considered the

Growing hydroponically is considered the best method for maximising plant yield

​ Supplied with a barbed brass connector & manifold

Dual layered Black White Grow Sheet

this item is available in Green and Budget Black

Made from recycled polypropylene

Bluelab pH 7.0 Solution Sachets (30) Shipping Growing hydroponically is considered theBluelab's 2. 77EC Conductivity Solution, pH 7. 0 and pH 4. 0 Calibration Solutions are now available in 20ml sachets. 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). The 2. 77EC Conductivity solution is used as a reference or checking solution to ensure you have adequately cleaned the EC CF probe.