Hanna Instruments GroLine pH 7.01 Calibration Buffer Bloom Spectrum LED Grow Lights zinc and iron

zinc and iron

non-sterile

Soak the seeds in a solution with 2 - 3g per US Gallon water for 8 - 12 hours

boxed and shipped immediately after being manufactured for optimum life span

reusable and food grade

Hanna Instruments GroLine pH 7.01 Calibration Buffer Bloom Spectrum LED Grow Lights zinc and ironGroLine pH 7. 01 Calibration Buffer 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