The Arc CSS100 Fire Rated Cavity Stop Sock from ARC Building Solutions is a cavity insulation product designed for use in external masonry walls. It measures 1200mm in length, 120mm in width, and 100mm in thickness, and is made from Rockfibre Mineral Wool.

Product Features:

• Material: Rockfibre Mineral Wool
• Dimensions: 1200mm x 120mm x 100mm
• Colour: Green
• Application: External Masonry Walls

This fire-rated cavity stop sock is part of the CSS series and is ideal for cavity wall insulation.