Firestop Pass Through Devices
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3Mâ„¢ 7100004181 PT4SD Fire Barrier Pass-Through Device, Square Shape, 4 in L, 3 hr Fire Rating, ASTM E814
MFG Part #:7100004181
3Mâ„¢ 7100004181 PT4SD Fire Barrier Pass-Through Device, Square Shape, 4 in L, 3 hr Fire Rating, ASTM E814
MFG Part #:7100004181