Is there any NA-FD1 fan duct alternatives for 120mm? Foam spacers are my primary choice, but silicones can also work. : r/sffpc
Noctua NA-FD1, Fan Duct Kit for NH-L9i and NH-L9a Series CPU Coolers (Black)
How to Remove a CPU Cooler or Fan Without Damaging the Motherboard? | by Mark smith | Medium
Noctua presents redux line CPU cooler and second fan kit
Thermalright TL-9015 cpu fan computer case fan quiet 4pin PWM PC fan, 15mm Slimline cooler fan, 2700RPM Speed, 90mm cpu cooling fan : Amazon.co.uk: Computers & Accessories
Noctua NH-U12S chromax.Black CPU Cooler with NA-HC2 chromax.White heatsink Cover - Imported Products from USA - iBhejo