| 摘要 |
A stopper for use in a metered dispensing unit including a conduit for carrying fluid from a container to a metering portion of the dispensing unit, the conduit having a flange at one end, a sealing member arranged on the conduit for sealing the conduit against an inside surface of the container, the sealing member having a tube through which the conduit extends, and a system for replaceably securing the sealing member on the conduit between the flange and an end of the conduit which is opposite the flange. For example, the securing system may include a releasable retaining clip.
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