Malone Specialty Inc. offers Carbon Steel Female British Parallel Swivel Run Tee’s, as well as 316 Stainless Steel Female British Parallel Swivel Run Tee’s, in various sizes. This adapter conforms with the ISO 228-1, and the BS 5200 specifications. This item features a 60° cone seat on the two male ends, as well as a 60° ball seat on the female swivel. This adapter also has a centering feature on the male ends for a bonded seal, or copper seal.