First Alert Fire Extinguisher Bracket, Stainless Steel Features Designed to fasten first alert brand fire extinguishers in marine, automotive and in-cab truck applications or anywhere a more secure installation is needed Steel bracket, black coated finish resists corrosion, rust and chips. Stainless steel straps United states coast guard approved for marine use with first alert fire extinguisher models: FE2A10GR, FE3A10GR and FE3A40GR