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Water level indicator
Controller includes a single (or dual) Digital Integrated Sensor Module (DISM)
Compared to PhysioSpec Indoor
They include an integrated float switch which automatically shuts your pump off so it doesnt run dry
Heats 6 square feet
Super Coarse Perlite co2 Water level indicatorPerlite is a unique volcanic mineral which expands from four to twenty times its original volume when it is heated. Perlite can reach temperatures of approximately 1600 1700 degrees F. The media's expansion is due to the presence of two to six percent combined water in the crude perlite rock, which causes the perlite to pop in a manner similar to that of popcorn. When expanded, each granular, snow white particle of perlite is sterile with a neutral pH
