Vacuum System AccessoriesFlow-Through Silencers Model No.: FTS-0.375 Part Number Ain. (mm) Bin. (mm) D1G Thread D2in. (mm) D3in. (mm) Weight oz. (g) FTS-0.375 0.36 (9.1) 2.75 (70) G 3/8 0.43 (11) 0.96 (24.3) 1.2 (34)