Customer Service


For product ideas, information, and pricing:
GSI Specialties
Ph: 202-882-7733 
mkommerstad@gsispecialties.com

For order status, accounting, returns and any order issues:

Monday-Friday 8:30am – 5:30pm EST

Address
GSI Specialties
6511 Chillum Place NW
Washington DC, 20012

Monday - Friday
9:00am - 9:00pm EST
(and checking our smartphones on the weekend!)


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