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Grand Rapids Hydroponics Inc.
520 Leonard St NW
Grand Rapids, MI 49504
(616) 454-2500

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Growco Indoor Garden Supply
1042 Michigan St NE
Grand Rapids, MI 49503
(616) 454-6900

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HGR Garden Supply
15231 N Holly Rd
Holly, MI 48442
(248) 369-8333

 

Hydro Giant
21651 Eight Mile Road
Detroit, MI 48219
(313) 387-7700

 

Hydro Spot
2777 S. Wayne Road
Westland, MI 48185
(734) 722-1285

 

Mighty Grow
2418 W Michigan Avenue
Jackson, MI 49202
(517) 962-4822