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±70 ppm (700 ppm) (@ 1940 ppm) and ±1ºC / ±2ºF
With an interchangeable outlet fitting
Engineered for moisture retention and aeration for optimum rooting and growth
77 EC calibration solution (50ml bottle)
Active Aqua 55 Gallon Drum with Pre-Drilled Locking Lid Insecticides ±70 ppm (700 ppm) (@This high quality 55 gallon drum is black in color and comes with a pre drilled solid cover and bolt ring closure. It is perfect for use as a reservoir for larger hydroponic systems. The pre drilled holes can be used for the grommets and barbed fittings necessary to outfit the drum with tubing for filling and draining. A larger hole can also be cut in the cover to act as a port for adding nutrients, checking pH, etc. Features 55 gallon nominal
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