Vacuum Lifting System Pad AttachmentsRound Vacuum Pad Attachment Model #: T1-90Q-NBR Part Number Seal Style Cup Diameter in. (mm) Height (Headroom) in. (mm) Seal Material* Pad # T1-90Q-NBRSeal # SSR-90-T1 Slip-On 9.25 (235) 3.87 (98) Neoprene *Also available with Silicone seal.