GroLine pH 4.01 Calibration Buffer (500 mL) rockwool 100 gallon conical bottom tank

100 gallon conical bottom tank

Conveniently sized to fit any of the Gorilla Grow Tents allowing you to keep your grow floor free of nutrients

flowers and house plants

Mounting bracket included

Hydrofarm's Xtrasun reflectors were designed with our customers' needs in mind

GroLine pH 4.01 Calibration Buffer (500 mL) rockwool 100 gallon conical bottom tankHI7004 050 is a high quality pH 4. 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