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Guide to FDC Locking Caps and Fire Department Connection Protection
Fire Department Connections (FDCs) provide access to a building’s
fire sprinkler system when firefighters need to supplement the
available water supply during a fire. Because FDCs are exposed
to the elements and accessible from outside a building, they
can be vulnerable to debris, vandalism, and damage.
FDC locking caps provide a way to secure the connection while
helping protect it from these issues. The Knox FDC Lock hel
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27th Oct 2026