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Strengthening beads ensure a stiffer
2 foot has 2
so no more clamps or reducers needed
growers usually need to double or triple phosphorous levels
Do not use with digital ballasts
Grodan® Stonewool A-OK 36/40 1.5" Starter Plugs™ Ducting Strengthening beads ensure a stifferProduct Details Grodan A OK 36 40 1. 5 in x 1. 5 in Plugs (98 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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