STI FP400 Firestop Plug,4 In. W,3 In. H
$50.49
Firestop Plug, Fire Rating 2 hr, Fire Resistance Type Intumescent, Firestop Type Plug, Interlocking No, Overall Height 3.1 in, Overall Length 4.64 in, Overall Width 4.64 in, Color Red, Expansion Temperature 350 Degrees F, Expansion Volume 10X, Features...