3M™ Fire Barrier Cast-in Device Height Adaptor 3HA, 3 in
Used in conjunction with a 3-inch 3M™ Fire Barrier Cast-In Device. Increases the height of allowable concrete thicknesses by 4 in. (101.6 mm) for installations requiring up to 12 in. (304.8 mm) pour depths.
Accommodates both metallic and non-metallic models of 3M™ Fire Barrier Cast-In Device.