Manual suction unit, light, economic and efficient. A foot/hand operated suction pump that can be used effectively where no alternative energy source is available. Manufactured in high grade ABS thermoplastic. Suction capacity up to 700 mbar. Collection reservoir ca. 500 ml volume. Its heavy-duty manufacture allows it to be used in adverse conditions (-30ºC / + 70ºC). A float valve prevents the flask from overflowing