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Supplied with a Diver and Hydrometer Jar. A diver is placed in a cylinder of water. Pressure on the cap forces water into the diver causing it to sink. Instructions are included.
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* | #305-1 Cartesian Diver
Unit.
Supplied with a Diver and Hydrometer Jar. A diver is placed in a cylinder of water. Pressure on the cap forces water into the diver causing it to sink. Instructions are included. |