This is a specially made Tri Clover Compatible tri clamp gasket that is flat on one side to seal a 2" Tri Clover Compatible cap to a Sanke Keg Ferrule. This is a replacement seal for our Sanke Keg Fermentor Kits.
Please Note: This gasket is slightly thicker than we would like it to be which means that the clamp doesn't close around the connection as easy as a silicone o-ring does. It is still easier to use though and seals fine.