The FAT SAC Perfect Union Quick Twist Adapter has a (blue) water bed fitting on the bag side and a Quick Twist Connector on the pump side.
This adapter allows you to use FAT SAC's Pro X Series Tsunami wakeboard ballast pump with older ballast bags that use the blue perfect union waterbed adapter fitting
FAT SAC ballast fittings have been designed with you in mind. All of the fittings make connecting pumps and hoses to your FAT SAC Pro X Series Ballast Sacs? a quick and simple task. No more struggling with old waterbed valves and water spilling inside the boat. Simply twist, pull, replace and you're ready to go! FAT SAC offers several different fittings that all work together to adapt to any of your needs