Consumers should immediately inspect the pressure gauge. If the gauge points to the red zone, consumers may contact Kidde to receive a free replacement extinguisher. However, if the gauge is not in the red zone but consumers have questions about an extinguisher with the listed model numbers identified above, they may also contact Kidde for additional information. For more information, consumers may contact Kidde at 1-888-345-4407 between 8 a.m. and 5 p.m. ET Monday through Friday or visit the firm's Web site . Date modified: 2009-03-01