Introducing a 5mm offset, NA-IS1-12 12cm inlet spacers can reduce influx turbulences in suction type applications where fans draw air through perforated panels or other obstacles in close proximity Simple but effective: In many situations, reducing influx turbulence can lead to significantly improved airflow performance as well as lower noise levels and more pleasant sound signatures Ideal for PC case intake fans, pull fans on water cooling radiators or other situations where fans draw air through grills, perforated panels, punctuated sheets, mesh structures, filters, etc. Compatible with all current Noctua 120x25mm fans such as the popular NF-A12x25, NF-F12, NF-P12 redux or NF-S12A series, not compatible with NF-A12x15 or fans from other manufacturers Sx2 set includes two inlet spacers, 8x NA-AV3 anti-vibration mounts, 8x screws for case fan installation, 8x screws for radiators with M3 threads and 8x screws for radiators with UNC 6-32 threads
