GroLine pH 7.01 Calibration Buffer (500 mL) complete-systems Internal mounted highly reflective aluminum

Internal mounted highly reflective aluminum

the Bluelab pH Pen and Bluelab ppm Pen

• Spectrum Combinations for your plants

• Can be used in soil

-Preserves organoleptic and medical qualities

GroLine pH 7.01 Calibration Buffer (500 mL) complete-systems Internal mounted highly reflective aluminumHI7007 050 is a high quality pH 7. 01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper proof seal to ensure the quality of the solution. Hanna's line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened