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The exceptional feature is largely due to the homogeneous distribution of water throughout the medium
healthy development
it's quick drying and encourages root development
Enjoy clean water for 2 months or 320 gallons
Combining Red and Blue Spectrums for Your Plants
Dissolved Oxygen Meter Kit AIR FILTER BOXES The exceptional feature is largelyReliable DO readings at a reasonable price Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums and fish hatcheries. The back lit display simultaneously displays dissolved oxygen (in % or mg L) and temperature readings (in C or F). Automatic temperature compensation as well as manual compensation for salinity and altitude. Features simple one button calibration to air. DO
