Calibration Buffer, pH 4.01 Hanna Light Kit This product can be used

This product can be used from vegetating state all the way through flush

and residential ventilation applications

or expanded clay pellets

Full Spectrum Optimization: Scientifically tuned wavelengths for all growth stages

Plants naturally absorb compounds from nutrients

Calibration Buffer, pH 4.01 Hanna Light Kit This product can be usedHI 7004 1L pH 4. 01 Calibration Solution (1 L), 1 bottle HI 7004 1L is a premium quality pH 4. 01 calibration solution that has been dyed red for easy buffer identification. 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. Hannas line of calibration buffers have been specially formulated to have an expiration of 5 years from