Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter nutrients-and-supplements • Provides 11 cubic feet

• Provides 11 cubic feet per hr of CO2

• 140W/120V/1

white grubs

indicating low enzymatic species count

PHOTOBIO•V is a modular

Bluelab Replacement pH Probe for Guardian, Combo, & pH Meter nutrients-and-supplements • Provides 11 cubic feetEasy to clean because of its bullet shaped glass bulb. Fully waterproof and less fragile than all glass electrodes because of its tough polypropylene barrel. Gel filled (non refillable) making it maintenance free and a double junction reference providing longer life! Probe Tips All probes are interchangeable between all Bluelab products All probes carry a 6 month warranty Proper hydration of pH probes is vital to maintain wick All pH probes eventually