Check the listing for details. BIO-RAD HydroTech Vacuum Pump - Free Shipping. Condition: For parts or not working. Listed at 124.99 USD. BIO-RAD HydroTech Vacuum PumpFor use with electrophoretic gel drying systems and other applications requiring > 23.4Torr vacuum Manufacturer suggested pair - Model 583 gel dryer Vacuum seal maintained with tap water, reducing hazardous waste production compared to oil pumps Self contained vapor trap within water reservoir Vacuum Starting>29" HgAfter 10 hr≥28" Hg at 22°CAt 35°C (ambient)≥26" HgFlow rate60 Hz, ≥28 L/min; 50 Hz, ≥21 L/minVoltage90–140 VAC, 50–60 Hz; 200–240 VAC, 50–60 HzIndicatorsVacuum (optional with gauge); water levelFunction modesContinuous or timed operationTimer control0–3 hr, fully adjustableFluid capacity1 L when primed, 4 L totalNoise12 dB rise over backgroundOperating conditions Temperature4–35°CHumidity10–90% relative humidityRegulatory certificationIEC 1010-1Emissions certificationCE emissions EN 55022; CE immunity EN 50082-2 (220/240 V only)Dimensions (W x D x H)25 x 40 x 51.5 cmWeight (empty)14 kg (31 lb)