| http://www.w3.org/ns/prov#value | - A plastic outer covering that seals and secures the said inner fitting and the first and second conduit means, results in a coupling device which iscompact, ergonomic, and/or leak-resistant.In one particular embodiment, the inner fitting and/or outer covering are color-coded to indicate a particular characteristic of the combined valve and/or device, such as the gauge of the first conduit means.
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