Information on GNC in Seattle, WA 98118 Outlet Note Regular Brands GNC Washington Seattle 329798 Rating 4.7 based on 97 votes Address 9000 Rainier Avenue s ste C Seattle, WA 98118 Phone Hours may vary in different stores. For accurate hours, please contact each store directly. Suite643 Hours may vary in different stores. For accurate hours, please contact each store directly. Nearby GNC Outlet GNC Outlet - Seattle GNC Outlet - Seattle GNC Outlet - Seattle GNC Outlet - Seattle People Also Viewed