Shipping Information: Signature REQUIRED Upon Delivery of this item. Any fees associated with return shipments to our warehouse due to failure to sign for or pick-up order(s) are customer responsibility. Specifications Tri-Clamp Size: 10"Material: 304 Stainless SteelStandard: 3A High PolishSpool OD: 10"Spool ID: 9.732"Flange OD: 10.57"Bead Center: 10.12" 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.