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The wrapper is what separates this from a loose bulk case
DWC Base Nutrient Compatibility pH Perfect
and ornamentals
The 20 lb aluminum CO2 tank holds 20 pounds of liquid CO2 in a 6061-T6 aluminum alloy cylinder
Bluelab Replacement pH Probe Green Lights The wrapper is what separatesA replacement probe for Bluelab Combo and pH Meters as well as the Bluelab Guardian Monitor. The Bluelab pH Probe is a replacement pH probe (electrode) suitable for use with Bluelab products that test the pH value of a solution. Unfortunately pH Probes do not last forever as they age through normal use and will eventually fail. With good care and use (keeping the probe tip wet and cleaning once a month) you will extend its life. The Bluelab pH Probe
