6" Tri-Clamp/ Tri Clover Spools Sizes Available: 6" x 6" Tri-Clamp Spool 6" x 12" Tri-Clamp Spool 6" x 24" Tri-Clamp Spool 6" x 36" Tri-Clamp Spool 6" x 48" Tri-Clamp Spool Specifications: Tri-Clamp Size 6" Material 304 Stainless Steel Standard 3A High Polish Spool OD 6" Spool ID 5.78" Flange OD 6.57" Bead Center 6.156" 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 | BVV 6" Tri-Clamp Spools.