3m Fire Barrier Self Locking Pillows
A Self-Contained, Highly Intumescent Firestop Product For Use in Through Penetration Firestops. Simple to Use, Interlocking Strips Lock Pillows Together. Pillows Achieve Up to 3-Hour Fire Ratings When Tested By UL Inc. in Accordance With Asme 814 (Ul1479) | 2" x 6" x 9"
