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SKU 7100035288
Legacy SKU 98040055570
UPC 00051115187919
Part Number PT4RRP
Product Number 2RDPTF

3M™ Fire Barrier Pass-Through Device Foam Plugs are designed for closing 3M™ Fire Barrier Pass-Through Devices which are used in wall and floor through-penetrations. They are simple to use and help reduce sound and smoke transmission. During a fire, this product, used in conjunction with a 3M™ Fire Barrier Pass-Through Device, helps maintain a tight seal against smoke.

  • Maintains cold smoke seal when used in conjunction with 3M™ Fire Barrier Pass-Through Devices
  • Foam plugs are re-enterable and reusable
  • Easy installation with no cure time saves time and labor
  • Helps reduce sound transmission
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On it's way to you October 30  


Minimum Order 1 Item
Order Increment 1 Item
  Immense Fire Resistance
  UL Certified
  Fast Shipping
  Industry Low Price
Product Dimensions
Imperial Metric
Weight 0.826 LBS
Shipping Dimensions
Weight 0.826 lb
Length 16 in
Width 8.25 in
Height 3 in


  1. What are the dimensions of the 3M™ Fire Barrier Pass-Through Device Foam Plugs, 4 in Round, 24/case?

    The foam plugs have a diameter of four inches and come in a case of twenty-four.

  2. How do these foam plugs work to prevent fires from spreading?

    These fire barrier pass-through device foam plugs expand when exposed to heat, blocking any potential pathways for fire and smoke to spread between rooms or floors.

  3. Are these foam plugs easy to install?

    Yes! These devices can easily be inserted into openings or through penetrations from either side without screws or fasteners. They also don't require any special tools for installation.

  4. Will I need additional materials like caulking or sealants with these foam plugs?

    No additional sealing materials are required after installing the Fire Barrier Pass-Through Device Foam Plugs—so you won't need any caulking or sealant!

  5. Can I trust that this product meets all relevant safety standards?

    : Absolutely. Our Fire Barrier Pass-Through Device Foam Plugs meet National Fire Protection Association (NFPA) one-hour fire rating requirements and has been tested up to three hours under UL design numbers W-L-7052/W-L-1377.

For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
Enhanced Seal for Fire Prevention

3M™ Fire Barrier Pass-Through Device Foam Plugs are designed to prevent smoke and sound from passing through walls and floors. These replacement foam plugs are engineered for firestop applications and are both re-enterable and reusable. The installation process is easy, saving time and labor.

Recommended Applications
  • Seal ends of 3M™ Fire Barrier Pass-Through Devices
Reliable and Affordable Fire Protection

3M™ Fire Barrier Pass-Through Device Foam Plugs are part of 3M's family of fire protection products. They are effective and easy to install, providing long-lasting solutions for commercial, industrial, and residential applications. As a trusted leader in the fire protection industry, 3M offers a broad line of affordable products designed to meet the most demanding firestop requirements. Choose from the industry-preferred line of fire protection products to find the solution you need.

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