Beware of counterfeit U.S. Coast Guard-approved portable fire extinguishers. The U.S. Coast Guard announced that it was made aware of counterfeit extinguishers said to be manufactured by Amerex Corporation and Buckeye Fish Equipment. “Both companies are major producers of genuine approved fire extinguishing equipment,” the U.S. Coast Guard said in a marine safety alert issued in March 2013. “Counterfeit portable fire extinguishers pose a safety hazard for any vessel that has one on board,” said Chesapeake Marine Training Institute’s President and Founder, Capt. Guy Sorensen.