Description
Electrical or manual vacuum pump is required by experiments on atmospheric pressure, electrical discharges in diluted gas when rather high vacuum up to 0.1 millimeter of mercury is necessary.
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The pump can also be utilized as compressor with pressure up to 4 atm. The pump has a manometer and two connecting pipes with cocks. One cock is used for supercharging and the other is used for depression. The hoses are included.
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