Bluelab pH 4.0 Calibration Solution 500ml Nutirents and Growing Media and control risk of root

and control risk of root infections

Package includes1x Vortex Pro-Lite Filter 8" x 24" Carbon Filter

Remo Nutrients Micro

and Japanese Beetles

Non stick blades

Bluelab pH 4.0 Calibration Solution 500ml Nutirents and Growing Media and control risk of rootBluelab 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.