Stingray Swivels are the most durable swivel on the market. Made from 3/16 Stainless Steel and assembled with Viton o-rings, our swivels are designed to handle exposure to harsh chemicals like sodium hypochlorite. This particular version is 3/4 inch the whole way through the swivel to ensure there is no restrictions in flow when using with a 3/4 manifold. We offer a lifetime warranty to the original purchaser of this swivel. This means that if it fails, we will send you a new one!