Ansul 2.5LB Extinguisher Nozzle Tip - 442405

The Ansul 442405 is the OEM nozzle tip for 2.5-lb Ansul portable fire extinguishers, engineered for precise agent dispersion during manual fire suppression. The 442405 is the correct nozzle tip for the specific ANSUL 2.5-lb extinguisher series it is designed for — distinct from the 428269 FORAY nozzle tip which serves a different 2.5-lb model. Always verify the correct part number using the ANSUL fire extinguisher parts list for the specific model being serviced, as the nozzle of fire extinguisher units must match the UL-listed configuration for that specific model.

The nozzle tip is one of the most functionally critical components of any portable fire extinguisher — it is the final precision element that converts the pressurized agent discharge into the spray pattern that was tested and certified as part of the extinguisher's UL listing. An incorrect, damaged, or blocked nozzle tip produces an off-spec discharge pattern that can reduce effective range, coverage area, or agent concentration at the fire — potentially leaving the operator unable to control a fire within the extinguisher's rated operating time. NFPA 10 annual inspections must verify nozzle tip integrity at each service visit.

The 442405 is available through authorized ansul distributors as part of the ANSUL fire extinguisher parts catalog. Fire extinguisher service shops managing ANSUL 2.5-lb unit fleets should stock both the 428269 (FORAY model) and the 442405 to cover all 2.5-lb nozzle tip service requirements. Nozzle tip replacement must be documented on the extinguisher inspection tag and fire extinguisher service tags — the tag on fire extinguisher units is the primary NFPA 10 compliance record reviewed by AHJ inspectors. Update annual fire extinguisher inspection tags and monthly inspection tags after any nozzle tip replacement to reflect the correct service date and component replaced. The fire extinguisher service schedule must account for nozzle tip inspection at every annual visit.

Inspect the 442405 nozzle tip at every NFPA 10 annual inspection. Check for cracks, impact damage, or orifice blockage from dried agent residue. The nozzle orifice of fire extinguisher units can become clogged with dry chemical that has caked from moisture absorption — clean gently with the ANSUL-recommended method only, never with metal tools that can alter orifice dimensions. Replace with a new 442405 if physical damage or unresolved blockage is found. Document nozzle tip condition in the fire extinguisher inspection and maintenance tags record.

How do I know if I need 442405 or 428269 for my ANSUL unit?

The model number printed on the extinguisher nameplate and the ANSUL fire extinguisher parts list identify the correct nozzle tip for each specific model. The 442405 and 428269 serve different 2.5-lb ANSUL extinguisher series and are not interchangeable — verify the correct part number before ordering. Authorized ansul distributors can confirm the correct nozzle tip for any ANSUL extinguisher model based on the nameplate information.