Calibration Stardard Card for calibration the Leaf Sensors -contains 1 ea. graduated calibrated micro-thin disks. Track voltage / inches (mm).

The original aeroponic system with closed-loop reservoir, hi-psi pump, micro-filtration, germination accessories & more!

ODC organic Super Concentrated - New 1.2 fl oz bottle for trees, gardens, orchards, nurseries, greenhouse, & lawns. Made from aquatic materials - shellfish - natural source of (N). MAKES 2,635 gallons of ready to use solution. 5x more concentrated.

BEYOND All Natural Plant Amendment™ 16 fl oz Concentrate bottle. Indoor/Outdoor. Overrides stress caused by environmental factors & deficiencies. Proven by NASA & organic growers since 1997. Meets USDA Organic (NOP) Standards. Natural source of nitrogen.

1/8" Barb x 1/8" Male Pipe Thread - Black Package Size: 6 ea.