8" Tri-Clamp/ Tri Clover Spools Sizes Available: 8" x 12" Tri-Clamp Spool 8" x 24" Tri-Clamp Spool Tri-Clamp Size 8" Material 304 Stainless Steel Standard 3A High Polish Spool OD 8" Spool ID 7.782" Flange OD 8.57" Bead Center 8.15" OD = Outer Dimension ID = Inner Dimension Disclaimer to Customer: User assumes all responsibility and risks of the system for all Stainless Steel Parts bought separately to piece together a Closed Loop, Closed Column, or Open Blast Extractors. They DO NOT come | BVV 8" Tri-Clamp Spools.