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Ships within 48 hours · Estimated delivery Sep 27 - Oct 2
adjustable dosing time
organic coir cube expands up to 7 times in volume when hydrated
this formulation provides qualities promoting growth and offering a delicate
Models 101 / 102 / 103 are single-tube units that can be installed in ductwork utilizing the pre-drilled flange and factory applied gasket
PurGro GroBot pH Probe, Industrial Replacement rock-bottom adjustable dosing timeThese don't look like the ones from the hydro store because they are double junction, flat surface pH probes typically used in chemical plants for process control. They last longer, stay cleaner and are built to mount in line inside your GroBot Evolution. Cost a few bucks more, but these are the good ones. Proudly made in the USA.
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