Rectorseal 66401 Metacaulk 1-1/2 x 3-1/2 x 4-1/2 in. Delta Deck Plug

Metacaulk Fire Stopping Delta Deck Plugs are made to firestop corrugated decking. Delta Deck Plugs are precision-cut from noncombustible UL classified high-density mineral fiber DELTA board using patented V-grooving technology to facilitate compression into the fluted profile of metal decks encountered at top-of-wall joints.  DELTA Deck Plugs are available in three standard sizes.