Arlington FSR404RD Non-Metallic and Plated Steel 4x4 Box

Designed for fast, code-compliant retrofits of security, surveillance and low-voltage systems, the Arlington Industries Non-Metallic and Plated Steel 4x4 Box (FSR404RD) gives contractors a dependable fire-rated mounting solution. The red, non-metallic box with plated steel reinforcement is engineered to be easy to install and clearly identifiable during inspections and maintenance. With a 2-hour fire rating and 27.5 cu. in. capacity, it accommodates multiple cables and device configurations while meeting fire-mounting requirements for monitoring and access-control equipment.

Versatile screw hole patterns support both 4x4 and two-gang devices, reducing the need for extra parts on-site and speeding up deployment for camera mounts, intrusion sensors, and networking junctions. Rated to hold 6 lb on walls and 10 lb on ceilings, the FSR404RD balances lightweight handling with the strength needed for commercial installations. Made in the U.S., this Arlington Industries fire mounting box is a practical choice for contractors specifying reliable enclosures for security and fire alarm systems. Specify the FSR404RD for your next fire-rated security or surveillance project—order today to streamline installation and compliance.

• Simplifies retrofit installs with a lightweight non-metallic body and plated steel support so you save labor time on upgrades
• Clearly visible red color for fire systems speeds identification and inspection on security and monitoring projects
• 2-hour fire rating and 27.5 cu. in. capacity provide code-compliant protection and ample cable fill for low-voltage, surveillance and access-control devices
• Multiple screw hole patterns accept 4x4 and two-gang devices for flexible mounting of cameras, sensors, and control modules
• Durable 6 lb wall and 10 lb ceiling support ratings secure devices in high-traffic commercial and institutional environments