The size of an H-Link depends on the size of the chain that it is going to connect. Not only that, but an H Link is also commonly used as a connector of chains of different sizes. Regardless, in industry the standard H Link can fit small offshore chain, of a diameter between 76 mm and 82 mm. Medium sized H Links can be used in chain of 84 mm and up to 102 mm. And the larger ones start at 102 mm and end at a diameter of 162 mm. It exists also the ROV H Link.