Anti-vibration gaskets for using compatible Noctua 140x25mm fans on water cooling radiators or other applications that benefit from a tighter seal Silicone rubber gaskets can damp vibrations and help to improve performance by reducing leak flows through the gap between the fan and the radiator Set of 3 is ideal for equipping AIO or DIY water cooling setups with 280 or 420mm radiators Compatible with most Noctua 140x25mm fans such as the award-winning NF-A14, NF-P14 redux series Easy installation, fully compatible with standard fan mounting or radiator screws as well as anti-vibration fan mounts such as Noctuas NA-AV1, NA-AV2, NA-AV3 or NA-AV4