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The Bluelab pH Probe has a Double Junction Reference which provides a longer life than many other pH probes and is a gel-filled non-refillable probe
The Phantom PHENO 440 horticultural lighting system combines high photon flux with superior efficiency
The OFF duration spans from 5 sec to 60 minutes
In many cases
Hydrologic Smallboy Sediment Pre Filter 120V The Bluelab pH Probe has 3000K The spray is metered Size:18" 713740654289 The Bluelab pH Probe has a Double Junction Reference which provides a longer life than many other pH probes and is a gel filled non refillable probe The Phantom PHENO 440 horticultural lighting system combines high photon flux with superior efficiency
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