MSI has started teasing a custom water block for their AMD Radeon HD 7970 Lightning Edition graphics card. The water block, manufactured by EKWB, is a full cover block that appears to be compatible with the stock backplate and as such doesn’t interfere with MSI’s GPU Reactor feature. If MSI plans to create and release a water cooled Radeon HD 7970 Lighting Edition graphics card we imagine this would be it, however no mention of this has been made. Currently all that can be said is that the water block itself will be available from EK Water Blocks as of July 27th. No pricing details have been released.