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Connect Air Stones: Attach each air stone to the air pump using 6 ft pieces of 3/16 inch black air line tubing
This one is 8" inches
Features VPD and humidity triggers
Designed to meet crop requirements for organic growers of herbs and vegetables
and BuildASoil amendments
Bluelab Probe Care Kit - pH Indoor Grow Equipment Connect Air Stones: Attach eachEverything you need to clean, calibrate and maintain your pH probes Your Bluelab Probe Care Kit pH contains: Probe care instructions 18 ml single use Bluelab Solution Sachets two each of: pH 7. 0, pH 4. 0 and KCl solutions Three plastic cups Bluelab pH Probe Cleaner Toothbrush for cleaning your pH probe Packaging may vary