Growth Technology pH Buffer 4 - 1L varo__2 x 1L 9 – is built using

9 – is built using high quality

Treats (L): Up to 30

Perfectly compatible with Bluelab pH pens

Plug and play

it can fit snugly on top of an existing grow tent

Growth Technology pH Buffer 4 - 1L varo__2 x 1L 9 – is built usingpH BUFFER 4 These are solutions of known and exact pH. If your pH meter doesnt read pH 7 (or pH 4) when the probe is put into the buffer then the meter is wrong and needs calibrating. We recommend that the meter is checked with pH 7 Buffer at least once a week, and checked with pH 4 buffer at least monthly. Each pH meter comes with instructions on how to calibrate the meter. Pour enough buffer from the bottle to cover the glass end of the probe when