Hemispherical Tri-Clamp Reducer with Welded Ring Stand Hemispherical Tri-Clamp Reducer with Welded Ring Stand allows the user to create a larger drain/filtering system allowing more weight to be supported with the ring stand. These reducers have 2 connection points with Tri-Clamp on the top and 1/2FNPT drain port on the bottom. Specifications: Material: 304 Stainless Steel High Polish Interior Standard: 3A Connection Types : Tri-Clamp x 1/2FNPT | BVV Hemispherical Tri-Clamp Reducer with | BVV Hemispherical Tri-Clamp Reducer with Welded Ring Stand