Other Specification: Product Name O Ring Material Silicone Outside Diameter 76.8mm/ 3.02" Inner Diameter 72mm / 2.83" Thickness 2.4mm/ 0.094" Color Black Weight 9g Package Content 5x Silicone O Ring Description: - Silicone supports a wide range of temperatures and has excellent resistance to weathering and ozone.
- It fits for vacuum tube to stop noise and rattle of the tube. Made of silicon and not get hot and burn up.
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