Information on GNC in Sinking Springs, PA 19608 Outlet Note Regular Brands GNC Pennsylvania Sinking Springs 329893 Rating 4.7 based on 97 votes Address 4810 Penn Avenue Sinking Springs, PA 19608 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 - Allentown GNC Outlet - Allentown GNC Outlet - Allentown GNC Outlet - Ashland People Also Viewed