Kidde 420118 Mounting Bracket for Mariner Dry Chemical Fire Extinguishers 2.5 lb thru 2.75 lb M5, M10, M110
All purpose bracket (P/N 896697 for Model Nos.  HAL-5A and 9).  Used to mount extinguishers in vehicles, boats and other rough usage locations.  Required for USCG approval.