3M 7000133838 Fire Barrier Height Adaptor 4 Inches

Product Description

The 3M 7000133838 is a height adaptor designed for use with the 4-inch 3M Fire Barrier Cast-In Device. It extends the allowable concrete pour depth by 4 inches, enabling installations in slabs up to 12 inches thick. This component is used in firestop sleeve applications where slab thickness exceeds the standard device range. Licensed firestop installers and general contractors working on commercial or multi-family construction typically install this adaptor during concrete forming and pour operations.

This adaptor is suited for concrete slab applications requiring extended pour depths in the 8-inch to 12-inch range. It accommodates both metallic and non-metallic versions of the 3M Fire Barrier Cast-In Device, making it useful across a range of pipe and conduit firestop penetration assemblies. It is sold individually and is typically specified on projects where fire-rated floor assemblies require deeper slab pours than the base device supports.

Key Features

• Increases allowable concrete pour depth by 4 inches for slab thicknesses up to 12 inches
• Compatible with both metallic and non-metallic 3M Fire Barrier Cast-In Device models
• Designed specifically for use with the 4-inch 3M Fire Barrier Cast-In Device
• Supports proper firestop system performance in deep concrete slab applications

Compatibility

Designed for use with the 4-inch 3M Fire Barrier Cast-In Device. Accommodates both metallic and non-metallic models of that device.

Installation Notes

Installation is performed by licensed firestop installers or contractors during the concrete forming stage, prior to the slab pour. The adaptor must be properly positioned on the base Cast-In Device before concrete is placed. Always follow the published firestop system design and applicable building code requirements for fire-rated floor-ceiling assemblies. Do not modify or cut the adaptor, as doing so may void the firestop system listing.

Technical Specifications

• Height Extension: 4 inches
• Maximum Slab Pour Depth: 12 inches
• Weight: 0.53 pounds
• UPC: 00051115165504

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000133838