CPSC campaign 01201
Hazard
These sprinkler heads can corrode or minerals, salts and other contaminants in water can affect the rubber O-ring seals. These factors could cause the sprinkler heads not to activate in a fire.
Remedy
Central will provide free of charge replacement sprinkler heads and the labor needed to replace the sprinklers. Central will arrange for the installation by using either its own Central Field Service crews or by contracting with professional sprinkler contractors. Building and home owners should check their fire sprinklers immediately to see if they are part of this voluntary replacement program.
The text above is quoted verbatim from the CPSC record. Confirm the affected units and the remedy with the manufacturer or CPSC. Recall data may be incomplete, delayed, or superseded.