Hemispherical Tri-Clamp Reducer with Welded Ring StandHemispherical 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 FNPT drain port on the bottom. Specifications: Material: 304 Stainless Steel High Polish Interior Standard: 3A Connection Types: 4" Tri Clamp x 1 4" FNPT 6"