I can honestly say of my 2 Worthington HP 100's, 2 Worthington HP 120's and 3 Worthington HP 130's there is no noticeable difference in size between comparable tanks.
Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include