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  • Monday - 8am - 5pm
    Tuesday - 8am - 5pm
    Wednesday - 8am - 5pm
    Thursday - 8am - 5pm
    Friday - 8am - 5pm
    Saturday - Closed
    Sunday - Closed
  • rtuck@drivepath.net
  • (248) 232-1293
  • 9381 Mockingbird Ln.
    Cadillac, MI 49601

© 2025 Michigan Grow Solutions. All rights reserved.

  • Monday - 8am - 5pm
    Tuesday - 8am - 5pm
    Wednesday - 8am - 5pm
    Thursday - 8am - 5pm
    Friday - 8am - 5pm
    Saturday - Closed
    Sunday - Closed
  • rtuck@drivepath.net
  • (248) 232-1293
  • 9381 Mockingbird Ln.
    Cadillac, MI 49601
NUTRIENTS & ADDITIVES

Humboldt County Magnum

0 Customer Reviews
  • In Stock

32oz. Magnum

Product ID: HCMQ
Manufacturer: Great Lakes Garden Wholesale


1gal Magnum OUT OF STOCK

Product ID: HCMGA
Manufacturer: Great Lakes Garden Wholesale


2.5 gal Magnum

Product ID: HCM2.5GA
Manufacturer: Great Lakes Garden Wholesale


5 gal Magnum OUT OF STOCK

Product ID: HCM5
Manufacturer: Great Lakes Garden Wholesale

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DESCRIPTIONS Reviews (0) SHIPPING & DELIVERY

Magnum is a concentrated Magnesium supplement with vitamin B1 for supplying extra Magnesium and Sulfur during the Bloom phase.

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