Information on GNC in Harrisburg, PA 17111 Outlet Note Regular Brands GNC Pennsylvania Harrisburg 327233 Rating 4.7 based on 97 votes Address 4299 Union Deposit Road Harrisburg, PA 17111 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 - Harrisburg GNC Outlet - Harrisburg GNC Outlet - Harrisburg GNC Outlet - Harrisburg People Also Viewed