Female Quick Connect with Chain & Cap The standard connector that comes with every FatSac ballast bag and allows you to connect various FatSac Quick Twist adapters.  Fitting system comes with the Quick Twist adapter and the Quick Twist Cap chained together for ease of use. FatSac ballast fittings have been designed with you in mind.  All of the fittings make connecting pumps and hoses to your FatSac ballast bag 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!  Features: * Sac valve threads *Sold as an Individual Warning [https://productimageserver.com/prop65/6pt.png]WARNING: This product can expose you to chemicals including Diisononyl Phthalate (DINP) which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov [http://P65Warnings.ca.gov].