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

Hi-psi 1/4" ID special re-enforced tubing for algae free nutrient solution. Use with hi-psi pumps, accumulator & solenoid. Works with 1/4" barbs.

BEYOND All Natural Plant Amendment™ 16 fl oz Concentrate bottle - makes 30 gal. Overrides stress caused by environmental factors & deficiencies. Proven by NASA & organic growers since 1997. Meets USDA Organic Standard. Contains nitrogen trace elements.

NASA developed Aeroponic Substrate offer the fastest germination of almost any size of seed in aeroponic system. Size: 15" wide x 100' long x 0.002" thick

Bushing 1/4" Male Pipe Thread x 1/8" Female Pipe Thread - Black. Package size: 2 ea.