METACAULK 66272 Fire Barrier Gasket,2-1/2" L,4-1/4" H
$5.32
Firestop Sheet, Fire Rating 3 hr, Fire Resistance Type Intumescent, Firestop Type Gasket Insert, Overall Width 0.11 in, Roll Length Not Applicable, Color Black, Features For Safe Retrofit Applications, Reduces Sound Transmission, Flame Spread Index...