BVV™ Molecular Sieve Beads Type 4A - 4LB Nutrients and Supplements Grow More's Mendocino Producer's Choice

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This is a passive unit that utilizes pressure differences created by manipulating temperature to move solvent

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BVV™ Molecular Sieve Beads Type 4A - 4LB Nutrients and Supplements Grow More's Mendocino Producer's ChoiceMolecular Sieve Beads Type 4A This bag contains both blue moisture indicating molecular sieve and also normal molecular sieve. The blue molecular sieve is a sodium alumina silicate molecular sieve impregnated with an inorganic metal salt moisture indicator. The desiccant will perform as a 4a molecular sieve plus with the additional ability to visually determine when the molecular sieve reaches saturation. When active, the molecular sieve beads are