The Cato Island Chief 105-5 is an MRI safe, all-plastic surface-mounted fire extinguisher cabinet for a 5 lb extinguisher, made in the USA. It is MR Safe labeled as defined in ASTM F2503: the manufacturer states it is composed of materials that are electrically non-conductive, non-metallic, and non-magnetic, so it is safe to use in a magnetic resonance imaging environment. Instead of a metal breaker bar or hammer, a clear PETG hand-pull panel gives access to the extinguisher in an emergency, and an ABS hexagonal lock with two keys opens the cabinet for service. This cabinet ships fully assembled. Pick red or white above.
Specifications
| Model | Cato Island Chief 10551-P red / 10501-P white (individually packaged) |
| MRI safety | MR Safe labeled, as defined in ASTM F2503 |
| Mounting | Surface-mount |
| Fits extinguisher | 2.5 to 5 lb |
| Tub interior (W×H×D) | 6 in × 16-3/4 in × 5-3/8 in |
| Overall (W×H×D) | 8-1/4 in × 19-1/4 in × 6-3/4 in |
| Material | High-impact polystyrene, red or white body with clear PETG pull panel |
| Access | Hand-pull panel (no metal break tool) + ABS hexagonal lock with 2 keys |
| Weight | 3.5 lb |
| Country of Origin | USA |
Extinguisher compatibility
The manufacturer rates this tub for Cosmic 2.5 to 5 lb and Galaxy 2.5 to 5 lb units. The MR Safe label covers the cabinet, not what goes inside it. For use in an MR suite, do not assume the extinguisher is MR Safe: confirm its rating separately and specify a non-magnetic unit if one is required. Confirm the cylinder diameter on your extinguisher's cut sheet against the tub dimensions above. See our Fire Extinguisher Cabinet Selection Guide for the full fit matrix.
Placement and mounting height follow the NFPA 10 requirements.
Documents and downloads
For specification and installation: the manufacturer's Island Chief series submittal (PDF). Need a project-specific submittal filled out? Send us the project details with a quote request.

