Doktor Doom Spider Mite Knockout grow-light-reflectors while providing 350 percent more

while providing 350 percent more photosynthetic photon flux (PPF)*

Width 6-7/8"

General outdoor watering wherever tap water quality is a concern for plants or beneficial organisms

The meter’s built-in low battery indicator means you’ll never be caught by surprise by a low-power product

Once in calibration mode the pH electrode can be calibrated to 1 or 2 points using the pre-programmed standard buffers (pH 4

Doktor Doom Spider Mite Knockout grow-light-reflectors while providing 350 percent moreSpider Mite Knockout has a high concentration of the naturally occurring insecticide pyrethrin, used to control aphids, spider mites, whiteflies, leafhoppers, Japanese beetles, and more. Can be used indoors and out; safe to apply on food crops up to one day before harvest.