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conductivity probe cleaner and chamois (probe cleaning instrument)
Features German made
GP3 Bloom is the component of the GP3 nutrient system that provides your plants with the right nutrients they need in the flowering stage of growth
Leonardite is a volcanic rock that over centuries has absorbed many essential nutrients plants need to grow big
Fully enclosed socket assembly protects wiring from heat and UV light
Grodan® Stonewool A-OK 25/40 2" Starter Plugs™ HPS Bulbs conductivity probe cleaner and chamoisProduct Details Grodan A OK 50 40 2 in x 2 in Plugs (50 Sheet) (30 Sheets Cs) Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a
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