fire pits
3m pm4 fire barrier packing material 20 ft. l woven 4 hr . fire rating
fire barrier packing material length 20 ft. 6 in . width 4 in . height 1 2 in . white up to 4 hr . fire rating material woven standards astm e 814 84 & 36 ul 1479 and astm c 1338 . br b features b ul li color white li li height 1 2 li li item fire barrier packing material li li length 20 ft. 6 li li material woven li li size 4 x 20 1 2 ft. li li width 4 li li standards astm e 814 84 & 36 ul 1479 and astm c 1338 . li li fire rating up to 4 hr . li ul
3m