30 Gal B&W PE Grow Bag (10-pack) flowering This portable meter measures dissolved

This portable meter measures dissolved oxygen with a Polarographic probe and is suitable for a wide range of applications

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Smart Alert Technology utilizes a 32 MHz fully integrated microprocessor to keep your setup running smoothly

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Heavy Harvest Compost Tea Bags will allow you to achieve the healthiest biological production possible

30 Gal B&W PE Grow Bag (10-pack) flowering This portable meter measures dissolvedA great alternative to expensive pots, these plant safe 5. 5mil polyethylene bags have a white exterior to reflect light and a black interior to prevent algae growth and have pre made holes in the bottom for drainage.