VCI rubber Magnetic VOCs Fugitive Emission Protection R ring band(patented ) VCI rubber Magnetic VOCs Fugitive Emission Protection R ring band Mainly suitable for particularly small or large VOCS fugitive emissions Carbon steel products such as valve stems, storage tanks, large equipment welds, manholes safety valves,pumps etc. Can also be used as a low-pressure leak protectors plug Easy to install, no tools required, reusable, suitable for very small and very large low-pressure leakage protection and fugitive emission protection of VOCs.