140mm fan shroud/adapter for intake fan. | Overclock.net
60mm-140mm Anti-Vibration Rubber Fan Gaskets | Coolerguys
Anti-Vibration Soft Silicone Fan Gaskets – Coolerguys
5pcs 80mm 92mm 120mm 140mm Anti-vibration Silicon Fan Gasket Noise Reducing Silencer Gasket Pad For Pc Computer Case Fan - Pc Components Cooling & Tools - AliExpress
Coolerguys 140mm Anti-Vibration Rubber Fan Gasket - Black - Newegg.com
Darkside 140mm Single Radiator Foam Gasket | 1mm Thickness (DS-0916) ModMyMods.com - PC Watercooling Parts and Accessories