Test Subs
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Test Subs
Built to withstand high-pressure environments, test subs are used to safely and reliably pressure-test blowout preventers (BOPs), lubricators, and other pressure control equipment before drilling or intervention operations commence. MADE IN USA by M&M International, these subs meet API 7-1 specs, are available in all thread and end connection types, and can be modified to meet individual customer specifications.