Vacuum System Accessories Flow-Through Silencers Model No.: FTS-0.750S Part Number A in. (mm) B in. (mm) D1 G Thread D2 in. (mm) D3 in. (mm) Item Weight oz. (grams) FTS-0.750S 0.59 (15) 2.95 (75) G 3/4 0.83 (21) 1.5 (38.1) 2.399 (68)