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GF Signet P51530-P0 Type 515 Rotor-X Standard Mount Paddlewheel Flow Sensor, Polypropylene Body, Black PVDF Rotor, Titanium Pin, 0.5" to 4", 8": Amazon.com: Industrial & Scientific
GEORG FISCHER SIGNET, 1/2 in to 8 in Connection Size, Insertion, Electronic Flowmeter - 36Y075|3-9900-1P - Grainger
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