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Nalgene™ Repairable Hand-Operated PVC Vacuum Pump with Gauge
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Ideal Vacuum | Flexible KF-25 Vacuum Pump Exhaust Hose, Do It Yourself, 2 each KF-25, 10 ft Hose, & PVC Cement Kit
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Three low-cost vacuum pumps made from materials available in rural... | Download Scientific Diagram
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How to Make a PVC Hand Pump to Move Water, Compress Air, & Create Vacuum « Hacks, Mods & Circuitry :: Gadget Hacks | Diy water pump, Vacuum pump, Hand pump