ISO80 (ISO-K) Series 
• High Vacuum Flange OD: Ø4.33" 
• Tube OD: 3.00" 
• ISO-K Claw Clamp Style 
 ISO80 High Vacuum Flange Equivalents: 
ISO-80, LF80, NW80, NW-80, Large Flange, ISO-LF 
 4-1/2" OD Conflat Flange (CF): 
• 2.50" Tube OD 
• 8-Clearance (Thru) Holes 
• 0.332" Bolt Hole Diameter 
• Non-Rotatable 
 4.50" OD Conflat Flange (CFF) Equivalents 
• 450CF, DN63CF, NW63CF, CF63, CF64 CF450 
**This Vacuum Essential Includes**
• Conical Reducer:  450xISO80-CR 
4-Aluminum Double Claw Clamps (ISO63-100-DC) 
1-SS/Viton Centering Ring 
(ISO80-300-SR-V) 
1-Bolt Kit (450-BK Series) 
10-Copper Gaskets 
(450-CG Series)