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Polysulfone Panel Mount Flow Meter with Polysulfone Connections - Water, 2" GPM/LPM or GPH/LPH Scales, Adjustable Needle Valve
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Amazon.com: Fulgem Products 104104F-02 Inline Airflow Regulator Needle Valve 1/4" NPT with Adjustment Lock and Color Display Strap For Multi-directional View of In-Time Flow Rate. For Air Tools and Compressors : Industrial
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