Specification Binding : Misc. Brand : Penn Plax Label : Penn Plax, INC. Manufacturer : Penn Plax, INC. Model : CH16500 NumberOfItems : 1 PackageDimensions_Weight : 1.349999998867902910462262 PackageDimensions : L:18.99999998062 X W:3.99999999592 X H:2.049999997908999606299213 PartNumber : CH16500 ProductGroup : Pet Products ProductTypeName : PET_SUPPLIES Publisher : Penn Plax, INC. Size : 500W - 100 to 200 gallon SmallImage_Height : 75 SmallImage_URL : http://ecx.images-amazon.com/images/I/31oMrz65hBL._SL75_.jpg SmallImage_Width : 25 Studio : Penn Plax, INC. Title : Penn Plax CH16500 Aquarium Heater Weight : 1.3 WeightUnit : pounds