Firestop Block Pack Of 20 For Cable Penetrations, Preformed Sealing Blocks 8 X 5 X 2 Inches, CFS-BL, Heavy-Duty Firestop Solution With Low VOC Five Grams Per Liter, Ideal For Commercial Installations And Retrofit Projects

Heavy-Duty Firestop Cable Block Pack, 20 pcs, 8x5x2 in
✔️ Preformed blocks seal cable penetrations, low VOC 5 g/L

These preformed firestop blocks seal penetrations around cables in walls and floors, helping maintain fire ratings while reducing air leakage. This heavy-duty solution is ideal for commercial installations and retrofit projects where safety and indoor air quality matter.

✅ Pack size: 20 preformed blocks per pack
✅ Block size: 8 x 5 x 2 in (LxWxH)
✅ Low VOC formula: five g/L for low emissions
✅ Material: heavy-duty blocks designed for durable performance in commercial settings

💡 What is a firestop block used for in cable penetrations?

Handy solution that keeps fire ratings intact and air tight in building penetrations.

- maintain fire rating integrity around penetrations - seal gaps around cables in walls and floors - reduces VOC emissions during installation - suitable for commercial retrofit and new builds