The NA-IS1-12 inlet spacers are compatible with all current Noctua 120x25mm fans.


The NA-IS1-14 inlet spacers are compatible with the following 140x25mm Noctua fans:

  • NF-A14x25 G2 PWM
  • NF-A14x25 G2 LS-PWM
  • NF-A14 PWM
  • NF-A14 PWM chromax.black.swap
  • NF-A14 FLX
  • NF-A14 ULN
  • NF-A14 industrialPPC-2000 IP67 PWM
  • NF-A14 industrialPPC-2000 PWM
  • NF-A14 industrialPPC-2000
  • NF-A14 industrialPPC-24V-2000 Q100 IP67 PWM
  • NF-A14 industrialPPC-24V-3000 Q100 IP67 PWM
  • NF-A14 industrialPPC-24V-2000 SP IP67 PWM
  • NF-A14 industrialPPC-24V-3000 SP IP67 PWM
  • NF-A14 industrialPPC-3000 PWM
  • NF-P14s redux-1500 PWM (since 2018)
  • NF-P14s redux-1200 PWM (since 2018)
  • NF-P14s redux-1200 (since 2018)
  • NF-P14s redux-900 (since 2018)


Please note that the NA-IS1-14 cannot be used with other fans and are not compatible with third-party fans.