FAQ: Which fans are compatible with the NA-IS1-14 inlet spacers?

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

NF-A14 PWM
NF-A14 FLX
NF-A14 ULN
NF-A14 PWM chromax.black.swap
NF-A14 industrialPPC-2000
NF-A14 industrialPPC-2000 PWM
NF-A14 industrialPPC-2000 IP67 PWM
NF-A14 industrialPPC-3000 PWM
NF-A14 industrialPPC-24V-2000 SP IP67 PWM
NF-A14 industrialPPC-24V-3000 SP IP67 PWM
NF-A14 industrialPPC-24V-2000 Q100 IP67 PWM
NF-A14 industrialPPC-24V-3000 Q100 IP67 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.