3M™ Fire Barrier Cast-In Tub Box Assembly, 3TB, 3 in

The 3M Fire Barrier Cast-In Tub Box Assembly, when used in conjunction with the 3M Fire Barrier Cast-In Device, accommodates concrete thickness as thin as 4-1/2 in. (114.3 mm) and pipe sizes from 1-1/2 in. to 2 in. (38.1 mm to 50.8 mm). Available with 2 in. (50.8 mm) or 3 in. (76.2 mm) foam insert depending on desired depth of void. Note: The 3M Fire Barrier Cast-In Tub Box Assembly is used specifically with a 2 in. 3M Fire Barrier Cast-In Device for Metallic Penetrations. When used together, there may be instances that allow for non-metallic penetrants to pass through the device – see system details for approved penetrants.
Details:

• Firestop tested for up to 3 hours, when used in conjunction with a 2-inch (50.8 mm) 3M Fire Barrier Cast-In Device for metallic and non-metallic penetrations, in accordance with ASTM E 814 (UL 1479)
• Easily adjusted height accommodates concrete thickness from 4-1/2 in. to 8 in. (114.3 mm to 203.2 mm)
• Easy-to-install, annular space allows for hassle-free pipe installation
• Accommodates 1-1/2 in. and 2 in. pipe (38.1mm and 50.8 mm)
• UL Classified, universally recognized independent test agency
• Factory made, helps assure consistent quality
• Red color easily identifiable as fire-rated

Suggested Applications:

• Used with 2-inch 3M Fire Barrier Cast-In Device for Metallic Pipes to firestop cPVC, PVC, ccABS and ABS pipes penetrating concrete floors with fire ratings up to 3 hours. It maybe applied to drain, waste and vent or closed pipe systems