Bluelab pH Probe KCl Storage Solution (250 ml) MH - Provides ideal air to

- Provides ideal air to water ratio

a patent pending rare earth magnet system holds the blade in place

Suitable for pots and open soil

UV protected to ensure long-lasting quality

4 x 6″ net-pot bucket lids

Bluelab pH Probe KCl Storage Solution (250 ml) MH - Provides ideal air toBluelab pH Probe KCl Storage Solution 250ml Store & Hydrate pH Probes and Pens Protect your investment and keep readings fast and accurate with Bluelab pH Probe KCl Storage Solution (250 ml). This is the recommended storage and hydration solution for Bluelab pH probes and pH pens, formulated specifically to maximize probe life and improve response time in real world growing environments. pH probes should never be stored dry. Using the correct KCl