70mm Silicon Rubber Noise Dampening Fan Gasket

Coolerguys 70mm Black Anti-Vibration Soft Silicone Fan Gasket with Mounting Hardware

These ultra-soft fan gaskets are designed to reduce the vibration from PC and server case cooling fans, and maintain a seal between the case side and the fan housing. Each retail pack contains an anti-vibration fan gasket with 4 silicone washers and mounting screws.
ADVANTAGES:
Silicone fan gaskets are truly the ultimate in fan noise reduction, because they perform two important tasks:
1. Help to 'seal' the small gap between the fan and the casing/enclosure wall. This improves the efficiency of the fan, by reducing feedback airflow and therefore air pressure losses
2. help to absorb the vibration that otherwise would be transmitted from the fan into the case chassis and case housing.
Other advantages include:
Compatible with virtually all case cooling fans
Supplied with screws and silicone washers
Quick and very easy to fit (these gaskets 'hold onto' the fan whilst fitting them due to a small lip in the gasket design)

TECHNICAL SPECIFICATIONS:
Operating Temperature: (-)20 - (+)70°C
Softness: Shore A 25° ±5
Material: Black Silicon Rubber
Gasket Thickness: 2.5mm
Recommended Compression: 5% of height