Vacuum System Accessories Flow-Through Silencers Model No.: FTS-0.375 Part Number A in. (mm) B in. (mm) D1 G Thread D2 in. (mm) D3 in. (mm) Item Weight oz. (grams) FTS-0.375 0.36 (9.1) 2.75 (70) G 3/8 0.43 (11) 0.96 (24.3) 1.058 (30)