I want to know what is the difference between the firestop wrap and bandage?

Hello Karen,

Thank you for reaching out to us on ask hilti. We make 2 firestop wrap strips, the cp-648E and cp-648S. The "E" stands for the endless wrap strip, that can be wrapped multiple times around pastic piping. The "S" stand for a single wrap, which goes around the plastic piping only once. For more information please see the links below.
I regards to a firestop bandage, Hilti does not make a bandage. 
I hope this was helpful. Please let us know if you want to disucuss this further or if you have any other questions.

https://www.hilti.com/firestop-%26-fire-protection-systems/firestop-collars%2c-wraps-%26-bandages/r3093#nav/close

https://www.hilti.com/firestop-%26-fire-protection-systems/firestop-collars%2c-wraps-%26-bandages/r3091

Thanks
-Matthew Martinez