DVF-C400250G1W Dixon Valve Vacuum Weld Fitting - Weld Reducing Tee for D-TORR Vacuum Fitting - 4" x 2-1/2" OD - 304 Stainless SteelApplication: Use in high vacuum and high temperature applications. Materials: Polished 304 Stainless Steel Specifications: Helium leakage testing to 1x10 8 Torr Standards followed: ASTM A270, ASTM A269, and ASME SA270 Part Number OD Dimensions A B DVF C100075G1W 1" x 3 4" 1. 88" 2. 13" DVF C150075G1W 1 1 2" x 3 4" 2. 25" 2. 25" DVF C150100G1W 1 1 2" x 1" 2. 25" 2. 38" DVF C200100G1W 2" x 1" 3. 00" 2. 38" DVF C200150G1W 2" x 1 1 2" 3. 00" 2. 38" DVF