Is there a 2 hour T rating firestop product for duct penetrations through a 2 hour rated floor?

Hello,

Thank you for reaching out to the Hilti Fire Protection Design Team to assist you with your firestop engineering needs.
Please see the attached UL listed system. If that does not meet your needs we can address your application through an Engineering Judgment which will be a custom detail showing your exact application with the firestop components required to maintain the stated ratings.
To officially submit for Engineering Judgment please go to www.hilti.com/ej

Regards,
Ricardo Mejia