Information on GNC in Manchester, NH 03101 Outlet Note Regular Brands GNC New Hampshire Manchester 328102 Rating 4.7 based on 97 votes Address 1631 elm Street Manchester, NH 03101 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 - Manchester GNC Outlet - Manchester GNC Outlet - Manchester GNC Outlet - Manchester People Also Viewed