Kidde Fenwal supplies engineered fire suppression and detection for high-hazard and mission-critical spaces — clean agent and CO2 systems, cylinders and valves, discharge nozzles and piping hardware, control panels and specialist detection.
These are system components rather than standalone products. A suppression installation ties together the cylinder and its valve assembly, the actuation hardware, the nozzles sized for the hazard volume, the pipe network, and a detection and release panel — and the parts are matched to one another by design calculation, not chosen independently.
When ordering replacements, work from the system drawings or the existing part numbers. Nozzle orifice sizing in particular is specific to the hazard it was calculated for and is not interchangeable between installations.

Kidde Fenwal WK-802556-000 Tubing, 1/8 X 100 (30.5 M) (Limited Availability)

Kidde Fenwal WK-802555-000 CO2 Pneumatic Tubing, 1/8 in. Copper, 50 ft Bundle

Kidde Fenwal WK-802486-000 CO2 Pneumatic Tubing, 3/16 in. Heavy Wall Copper, 12 ft, Flared Ends with Tubing Nuts

Kidde Fenwal WK-802394-000 Replacement Handle & Cable Fastener, Pull Box 81-871403-000 & 81-870087-000

Kidde Fenwal WK-802366-000 CO2 Pneumatic Tubing, 3/16 in. Heavy Wall Copper, 17 in., Interconnects Tandem Control Heads

Kidde Fenwal WK-800760-000 Main Check, 5/8" "I" Valve

Kidde Fenwal WK-800450-000 Replacement Hammer & Chain, Pull Box 81-871403-000

Kidde Fenwal WK-800443-000 Check Valve, 1"

Kidde Fenwal WK-699205-050 Male Branch Tee, 5/16 Flare X 1/8 NPT

Kidde Fenwal WK-699205-030 Male Elbow, 5/16 Flare X 1/8 NPT

Kidde Fenwal WK-699205-010 Male Connector, 5/16 Flare X 1/8 NPT

Kidde Fenwal WK-682800-000 5 Cylinder Back - 50 lb Oak Rack

Kidde Fenwal WK-682300-000 4 Cylinder Back - 50 lb Oak Rack

Kidde Fenwal WK-681800-000 3 Cylinder Back - 50 lb Oak Rack

Kidde Fenwal WK-681300-000 2 Cylinder Back - 50 lb Oak Rack

Kidde Fenwal WK-681016-000 Flange 4 (for Welded Pipe) CL600

Kidde Fenwal WK-681012-000 Flange 3 (for Welded Pipe) CL600

Kidde Fenwal WK-681000-000 5 Cylinder Front - 50 lb Oak Rack

Kidde Fenwal WK-680900-000 5 Cylinder Intermediate - 50 lb Oak Rack

Kidde Fenwal WK-680500-000 4 Cylinder Front - 50 lb Oak Rack

Kidde Fenwal WK-680000-000 3 Cylinder Front - 50 lb Oak Rack

Kidde Fenwal WK-679500-000 2 Cylinder Front - 50 lb Oak Rack

Kidde Fenwal WK-566109-160 O-ring, LLI/Check Diffuser to Cylinder Boss

