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6 - 3/4" barbed tee connectors
CONCENTRATION OF THE SINGLE SPECIES REMAINS CONSISTENT
Primo testers provide a fast and dependable way to measure the total dissolved solids or conductivity in your water samples
When germinating seeds
calibration solution for High testers
VSC-DNe Day/Night Adjustable Fan Speed Controller Hydroponics 6 - 3/4" barbed teeThe CAVSC DNe is designed to gradually increase or decrease the speed of centrifugal fans depending on the day or night temperature set points. The Variable Fan Speed Controller enables you to determine precise temperature levels to achieve within your growing environment by way of proper ventilation. The temperature differential switch can be set at 3, 5, or 7F and comes complete with a 12' probe. The day and night temperature knobs can be set
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