Underwater Flash Units - Nikon Inc., of Melville, N.Y., is recalling about 29,900 Nikonos Speedlight Model SB-103 amphibious high-performance electronic flash unit bodies. Gas buildup within the unit can cause the front lens and flash tube unit, along with the rubberized ring holding them in place, to propel off the front of the Speedlight. Dive retailers sold these Nikonos SB-103 Speedlights between November 1984 and October 1994 for about $350.

Consumers should immediately stop using the Nikonos SB-103 Speedlight. Nikon will replace the model SB-103 body with a Nikonos SB-105 Speedlight body free of charge. For more information, contact Nikon at (800) 645-6687 between 6 a.m. and 4 p.m PDT Monday through Friday.