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colloidal silver or harsh chemicals
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VSC-DNe Day/Night Adjustable Fan Speed Controller microbial fertilizer colloidal silver or harsh chemicalsThe 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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