The 22416 Nozzle Kit is the new nozzle assembly with O-ring for the Mr Heater and HeatStar portable construction heaters manufactured by Enerco.
The 22416 Nozzle kit was used on the following heaters:
Mr Heater Models: MH50KT
HeatStar Models: HS50KT
The 22416 Nozzle Kit has been replaced by the F227416 Nozzle Kit