Hand Operated Pressure and Vacuum Pump Calibrator (Only Hand Pump) for Calibration Labs, Field Calibration and Pressure Transmitter Calibration Model: AI-DP1-2200: Amazon.com: Industrial & Scientific
VIPER Vacuum/Pressure Pump CCW - Masport Pumps
Hand-operated vacuum/pressure pump, 15 mL/stroke, zinc alloy body SKU 7930101 from Cole-Parmer Germany