Robinson inside style tube plug made of rubber and vulcanized fibre. Commonly used for permanent tube plug but can also be used for temporary plugging. The machined to size vulcanized fibre expands when in the presents of water to assist the rubber ring in additional sealing power.
Plug hardware is recommended to match tube material and is available in brass, stainless steel 316, 304, titanium and monel. Other materials are available upon request, please inquire.
Available for 5/8" - 1-1/4" OD tubes, all gauges.
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