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Have comments or questions? Are you a retailer who would like to request product flyers, posters, t-shirts, mobiles, photo discs, or samples? Email us at info@hydrodynamicsintl.com Mailing address: 5711 Enterprise Drive Lansing, MI 48911 Phone: (517) 887-2007 Fax: (517) 887-2008 Office hours: M-F 9 am to 5 pm ET |