Hanna Instruments GroLine pH 7.01 Calibration Buffer, 500mL 4x4 Grow Tents This carbon adsorbs VOCs (volatile

This carbon adsorbs VOCs (volatile organic compounds) therefore trapping every odor molecule that passes through the filter onto the micro-porous carbon surface

due to its soluble phosphorus content is especially helpful during the flowering and fruiting process

Smells like the ocean and provides all the inputs in 1 bag

as well as temperature memory systems included in each unit

Hanna Instruments GroLine pH 7.01 Calibration Buffer, 500mL 4x4 Grow Tents This carbon adsorbs VOCs (volatileGroLine 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