3M™ Fire Barrier Cast-in Device Metal Deck Adaptor 4MDA, 4 in
Used in conjunction with a 4-inch (101.6 mm) 3M™ Fire Barrier Cast-In Device. Allows the device to be installed on fluted metal decks (requires a minimum 2-1/2 in. (63.5 mm) concrete topping).
Accommodates both metallic and non-metallic models of 3M™ Fire Barrier Cast-In Device.